autoconf: modernize autoconf and update a lot of m4 macros
This commit is contained in:
H. Peter Anvin
parent
b9528913aa
commit
0e96487608
18 changed files with 261 additions and 117 deletions
1
.gitignore
vendored
1
.gitignore
vendored
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@ -108,3 +108,4 @@ TAGS
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/autoconf/compile
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/autoconf/config.*
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/autoconf/install-sh
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/autoconf/clean.sh
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38
autoconf/attribute.h
Normal file
38
autoconf/attribute.h
Normal file
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@ -0,0 +1,38 @@
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/*
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* Define a macro for compiler attributes. Use either gcc
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* syntax if __GNUC__ is defined, or try to look for the
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* modern standard [[x]] attributes.
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*
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* Unfortunately [[x]] doesn't always work when it comes to
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* GNUC-specific attributes, and some compilers support GCC
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* syntax without __attribute__ just to be confusing.
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* Therefore, this also needs an autoconf module to test
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* the validity.
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*
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* Use #ifdef and not defined() here; some compilers do the wrong
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* thing in the latter case.
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*/
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#ifndef ATTRIBUTE
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# define MODERN_ATTRIBUTE(x) [[x]]
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# ifndef __GNUC__
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# ifdef __cplusplus
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# ifdef __has_cpp_attribute
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# define ATTRIBUTE(x) MODERN_ATTRIBUTE(x)
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# endif
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# endif
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# ifndef ATTRIBUTE
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# ifdef __has_c_attribute
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# define ATTRIBUTE(x) MODERN_ATTRIBUTE(x)
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# endif
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# endif
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# ifndef ATTRIBUTE
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# ifdef __has_attribute
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# define ATTRIBUTE(x) MODERN_ATTRIBUTE(x)
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# endif
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# endif
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# endif
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# ifndef ATTRIBUTE
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# define ATTRIBUTE(x) __attribute__((x))
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# endif
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#endif
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25
autoconf/m4/pa_add_langflags.m4
Normal file
25
autoconf/m4/pa_add_langflags.m4
Normal file
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@ -0,0 +1,25 @@
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dnl --------------------------------------------------------------------------
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dnl PA_ADD_LANGFLAGS(flag...)
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dnl
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dnl Attempt to add the option in the given list to each compiler flags
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dnl (CFLAGS, CXXFLAGS, ...), if it doesn't break compilation.
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dnl --------------------------------------------------------------------------
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m4_defun([_PA_LANGFLAG_VAR],
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[m4_case([$1],
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[C], [CFLAGS],
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[C++], [CXXFLAGS],
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[Fortran 77], [FFLAGS],
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[Fortran], [FCFLAGS],
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[Erlang], [ERLCFLAGS],
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[Objective C], [OBJCFLAGS],
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[Objective C++], [OBJCXXFLAGS],
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[Go], [GOFLAGS],
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[m4_fatal([PA_ADD_LANGFLAGS: Unknown language: $1])])])
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AC_DEFUN([PA_ADD_LANGFLAGS],
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[m4_set_foreach(PA_LANG_SEEN_SET, [lang],
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[_pa_flag_found=no
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m4_foreach_w([flag], [$1],
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[AS_IF([test $_pa_flag_found = no],
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[PA_ADD_FLAGS(_PA_LANGFLAG_VAR(lang),flag,[],[_pa_flag_found=yes])])
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])])])
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11
autoconf/m4/pa_attribute_syntax.m4
Normal file
11
autoconf/m4/pa_attribute_syntax.m4
Normal file
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@ -0,0 +1,11 @@
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dnl --------------------------------------------------------------------------
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dnl PA_ATTRIBUTE_SYNTAX
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dnl
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dnl Source code fragment to test for attribute syntax
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dnl The use of #ifdef rather than defined() here is intentional:
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dnl defined() is known to not always work right.
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dnl --------------------------------------------------------------------------
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AC_DEFUN([PA_ATTRIBUTE_SYNTAX],
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[#include "autoconf/attribute.h"
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])
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19
autoconf/m4/pa_common_attributes.m4
Normal file
19
autoconf/m4/pa_common_attributes.m4
Normal file
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@ -0,0 +1,19 @@
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dnl --------------------------------------------------------------------------
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dnl PA_COMMON_ATTRIBUTES
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dnl
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dnl Test for a bunch of common function attributes and define macros for them.
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dnl --------------------------------------------------------------------------
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AC_DEFUN([PA_COMMON_ATTRIBUTES],
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[PA_ADD_CPPFLAGS([-Werror=attributes])
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PA_FUNC_ATTRIBUTE(noreturn)
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PA_FUNC_ATTRIBUTE(returns_nonnull,,[void *],,,never_null)
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PA_FUNC_ATTRIBUTE(malloc,,[void *])
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PA_FUNC_ATTRIBUTE(alloc_size,[1],[void *],[int],[80])
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PA_FUNC_ATTRIBUTE(alloc_size,[1,2],[void *],[int,int],[20,40])
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PA_FUNC_ATTRIBUTE(sentinel,,,[const char *, ...],["a","b",NULL],end_with_null)
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PA_FUNC_ATTRIBUTE(format,[printf,1,2],int,[const char *, ...],["%d",1])
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PA_FUNC_ATTRIBUTE(const)
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PA_FUNC_ATTRIBUTE(pure)
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PA_FUNC_ATTRIBUTE(cold,,,,,unlikely_func)
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PA_FUNC_ATTRIBUTE(unused)
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PA_FUNC_ATTRIBUTE_ERROR])
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32
autoconf/m4/pa_endian.m4
Normal file
32
autoconf/m4/pa_endian.m4
Normal file
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@ -0,0 +1,32 @@
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dnl --------------------------------------------------------------------------
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dnl PA_ENDIAN
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dnl
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dnl Test for a bunch of variants of endian tests and byteorder functions.
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dnl --------------------------------------------------------------------------
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AC_DEFUN([PA_ENDIAN],
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[AC_C_BIGENDIAN(AC_DEFINE(WORDS_BIGENDIAN),AC_DEFINE(WORDS_LITTLEENDIAN),,)
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AH_TEMPLATE(WORDS_BIGENDIAN,
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[Define to 1 if your processor stores words with the most significant
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byte first (like Motorola and SPARC, unlike Intel and VAX).])
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AH_TEMPLATE(WORDS_LITTLEENDIAN,
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[Define to 1 if your processor stores words with the least significant
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byte first (like Intel and VAX, unlike Motorola and SPARC).])
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PA_ADD_HEADERS(endian.h sys/endian.h machine/endian.h)
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PA_HAVE_FUNC(cpu_to_le16, (0))
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PA_HAVE_FUNC(cpu_to_le32, (0))
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PA_HAVE_FUNC(cpu_to_le64, (0))
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PA_HAVE_FUNC(__cpu_to_le16, (0))
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PA_HAVE_FUNC(__cpu_to_le32, (0))
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PA_HAVE_FUNC(__cpu_to_le64, (0))
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PA_HAVE_FUNC(htole16, (0))
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PA_HAVE_FUNC(htole32, (0))
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PA_HAVE_FUNC(htole64, (0))
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PA_HAVE_FUNC(__bswap_16, (0))
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PA_HAVE_FUNC(__bswap_32, (0))
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PA_HAVE_FUNC(__bswap_64, (0))
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PA_HAVE_FUNC(__builtin_bswap16, (0))
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PA_HAVE_FUNC(__builtin_bswap32, (0))
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PA_HAVE_FUNC(__builtin_bswap64, (0))
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PA_HAVE_FUNC(_byteswap_ushort, (0))
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PA_HAVE_FUNC(_byteswap_ulong, (0))
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PA_HAVE_FUNC(_byteswap_uint64, (0))])
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@ -20,7 +20,9 @@ AC_DEFUN([_PA_FUNC_ATTRIBUTE],
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AC_MSG_CHECKING([if $CC supports the $1]_pa_faa[ function attribute])
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([
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AC_INCLUDES_DEFAULT
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extern ifelse([$3],[],[void *],[$3]) __attribute__(([$1]_pa_faa))
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PA_ATTRIBUTE_SYNTAX
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extern ifelse([$3],[],[void *],[$3]) ATTRIBUTE([$1]_pa_faa)
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bar(ifelse([$4],[],[int],[$4]));
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ifelse([$3],[],[void *],[$3]) foo(void);
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ifelse([$3],[],[void *],[$3]) foo(void)
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@ -31,12 +33,12 @@ ifelse([$3],[],[void *],[$3]) foo(void)
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])],
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[AC_MSG_RESULT([yes])
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AC_DEFINE(PA_SYM([HAVE_FUNC_ATTRIBUTE],_pa_suf,[_$1]), 1,
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[Define to 1 if your compiler supports __attribute__(($1)) on functions])],
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[Define to 1 if your compiler supports the $1 function attribute])],
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[AC_MSG_RESULT([no])])
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AH_BOTTOM(m4_quote(m4_join([],
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[#ifndef ],_pa_mac,[
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# ifdef ],PA_SYM([HAVE_FUNC_ATTRIBUTE],_pa_suf,[_$1]),[
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# define ],_pa_mac,m4_quote(_pa_fam),[ __attribute__(($1],m4_quote(_pa_fam),[))
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# define ],_pa_mac,m4_quote(_pa_fam),[ ATTRIBUTE($1],m4_quote(_pa_fam),[)
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# else
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# define ],_pa_mac,m4_quote(_pa_fam),[
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# endif
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@ -51,7 +53,9 @@ AC_DEFUN([_PA_FUNC_PTR_ATTRIBUTE],
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AC_MSG_CHECKING([if $CC supports the $1]_pa_faa[ function attribute on pointers])
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([
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AC_INCLUDES_DEFAULT
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extern ifelse([$3],[],[void *],[$3]) __attribute__(([$1]_pa_faa))
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PA_ATTRIBUTE_SYNTAX
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extern ifelse([$3],[],[void *],[$3]) ATTRIBUTE([$1]_pa_faa)
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(*bar1)(ifelse([$4],[],[int],[$4]));
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ifelse([$3],[],[void *],[$3]) foo1(void);
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ifelse([$3],[],[void *],[$3]) foo1(void)
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@ -60,7 +64,7 @@ ifelse([$3],[],[void *],[$3]) foo1(void)
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bar1(ifelse([$5],[],[1],[$5]));
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}
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typedef ifelse([$3],[],[void *],[$3]) __attribute__(([$1]_pa_faa))
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typedef ifelse([$3],[],[void *],[$3]) ATTRIBUTE([$1]_pa_faa)
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(*bar_t)(ifelse([$4],[],[int],[$4]));
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extern bar_t bar2;
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ifelse([$3],[],[void *],[$3]) foo2(void);
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@ -72,12 +76,12 @@ ifelse([$3],[],[void *],[$3]) foo2(void)
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])],
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[AC_MSG_RESULT([yes])
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AC_DEFINE(PA_SYM([HAVE_FUNC_PTR_ATTRIBUTE],_pa_suf,[_$1]), 1,
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[Define to 1 if your compiler supports __attribute__(($1)) on function pointers])],
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[Define to 1 if your compiler supports the $1 attribute on function pointers])],
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[AC_MSG_RESULT([no])])
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AH_BOTTOM(m4_quote(m4_join([],
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[#ifndef ],_pa_mac,[
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# ifdef ],PA_SYM([HAVE_FUNC_PTR_ATTRIBUTE],_pa_suf,[_$1]),[
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# define ],_pa_mac,m4_quote(_pa_fam),[ __attribute__(($1],m4_quote(_pa_fam),[))
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# define ],_pa_mac,m4_quote(_pa_fam),[ ATTRIBUTE($1],m4_quote(_pa_fam),[)
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# else
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# define ],_pa_mac,m4_quote(_pa_fam),[
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# endif
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@ -1,7 +1,9 @@
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dnl --------------------------------------------------------------------------
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dnl PA_FUNC_ATTRIBUTE_ERROR
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dnl
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dnl See if this compiler supports __attribute__((error("foo")))
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dnl See if this compiler supports __attribute__((error("foo"))) *and*
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dnl does *not* error if the erroneous call is unreachable.
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dnl
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dnl The generic version of this doesn't work as it makes the compiler
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dnl throw an error by design.
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dnl
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@ -12,7 +14,9 @@ AC_DEFUN([PA_FUNC_ATTRIBUTE_ERROR],
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[AC_MSG_CHECKING([if $CC supports the error function attribute])
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AC_COMPILE_IFELSE([AC_LANG_SOURCE([
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AC_INCLUDES_DEFAULT
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extern void __attribute__((error("message"))) barf(void);
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PA_ATTRIBUTE_SYNTAX
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extern ATTRIBUTE(error("message")) void barf(void);
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void foo(void);
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void foo(void)
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{
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@ -22,6 +26,6 @@ void foo(void)
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])],
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[AC_MSG_RESULT([yes])
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AC_DEFINE([HAVE_FUNC_ATTRIBUTE_ERROR], 1,
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[Define to 1 if your compiler supports __attribute__((error)) on functions])],
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[Define to 1 if your compiler supports the error attribute on functions])],
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[AC_MSG_RESULT([no])])
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])
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13
autoconf/m4/pa_option_debug.m4
Normal file
13
autoconf/m4/pa_option_debug.m4
Normal file
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@ -0,0 +1,13 @@
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dnl --------------------------------------------------------------------------
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dnl PA_OPTION_DEBUG(with_debug, without_debug)
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dnl
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dnl Set debug flags and optimization flags depending on if
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dnl --enable-debug is set or not. Some flags are set regardless...
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dnl --------------------------------------------------------------------------
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AC_DEFUN([PA_OPTION_DEBUG],
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[PA_ARG_DISABLED([gdb], [disable gdb debug extensions],
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[PA_ADD_LANGFLAGS([-g3])], [PA_ADD_LANGFLAGS([-ggdb3 -g3])])
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PA_ARG_ENABLED([debug], [optimize for debugging],
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[PA_ADD_LANGFLAGS([-Og -O0])
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$1],
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[$2])])
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14
autoconf/m4/pa_option_gc.m4
Normal file
14
autoconf/m4/pa_option_gc.m4
Normal file
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@ -0,0 +1,14 @@
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dnl --------------------------------------------------------------------------
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dnl PA_OPTION_GC
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dnl
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dnl Option to compile with garbage collection; currently only supports
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dnl gcc/ELF. Enabled by default.
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dnl --------------------------------------------------------------------------
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AC_DEFUN([PA_OPTION_GC],
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[PA_ARG_DISABLED([gc],
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[do not compile with dead code garbage collection support],
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[],
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[PA_ADD_LDFLAGS([-Wl,--as-needed])
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PA_ADD_CFLAGS([-ffunction-sections])
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PA_ADD_CFLAGS([-fdata-sections])
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PA_ADD_LDFLAGS([-Wl,--gc-sections])])])
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20
autoconf/m4/pa_option_lto.m4
Normal file
20
autoconf/m4/pa_option_lto.m4
Normal file
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@ -0,0 +1,20 @@
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dnl --------------------------------------------------------------------------
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dnl PA_OPTION_LTO(default)
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dnl
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dnl Try to enable link-time optimization. Enable it by default if
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dnl the "default" argument is set to "yes"; currently the default is "no",
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dnl but that could change in the future -- to force disabled by default,
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dnl set to "no".
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dnl --------------------------------------------------------------------------
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AC_DEFUN([PA_OPTION_LTO],
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[PA_ARG_BOOL([lto],
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[Try to enable link-time optimization for this compiler],
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[$1],
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[PA_ADD_LANGFLAGS([-flto])
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dnl Note: we use _PROG rather than _TOOL since we are prepending the full
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dnl CC name which ought to already contain the host triplet if needed
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ccbase=`echo "$CC" | awk '{ print $1; }'`
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AC_CHECK_PROGS(CC_AR, [${ccbase}-ar], [$ac_cv_prog_AR])
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AR="$CC_AR"
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AC_CHECK_PROGS(CC_RANLIB, [${ccbase}-ranlib], [$ac_cv_prog_RANLIB])
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RANLIB="$CC_RANLIB"])])
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8
autoconf/m4/pa_option_profiling.m4
Normal file
8
autoconf/m4/pa_option_profiling.m4
Normal file
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@ -0,0 +1,8 @@
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dnl --------------------------------------------------------------------------
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dnl PA_OPTION_PROFILING(with_profiling, without_profiling)
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dnl
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dnl Try to enable profiling if --enable-profiling is set.
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dnl --------------------------------------------------------------------------
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AC_DEFUN([PA_OPTION_PROFILING],
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[PA_ARG_ENABLED([profiling], [compile with profiling (-pg option)],
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[PA_ADD_LANGFLAGS([-pg])])])
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11
autoconf/m4/pa_option_sanitizer.m4
Normal file
11
autoconf/m4/pa_option_sanitizer.m4
Normal file
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@ -0,0 +1,11 @@
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dnl --------------------------------------------------------------------------
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dnl PA_OPTION_SANITIZER
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dnl
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dnl Option to compile with sanitizers enabled.
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dnl --------------------------------------------------------------------------
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AC_DEFUN([PA_OPTION_SANITIZER],
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[PA_ARG_ENABLED([sanitizer],
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[compile with sanitizers enabled],
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[PA_ADD_CFLAGS([-fno-omit-frame-pointer])
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PA_ADD_CFLAGS([-fsanitize=address])
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PA_ADD_CFLAGS([-fsanitize=undefined])])])
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@ -2,7 +2,10 @@ dnl --------------------------------------------------------------------------
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dnl PA_SYM(prefix, string)
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dnl
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dnl Convert a (semi-) arbitrary string to a CPP symbol
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dnl Compact underscores and convert non-C characters to underscore,
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dnl except + which is converted to X (so C++ -> CXX).
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dnl --------------------------------------------------------------------------
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AC_DEFUN([PA_SYM],
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[m4_bpatsubsts(m4_quote(m4_toupper([$*])),
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[,],[],[[^ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]+],[_],[^._?\(.*\)_.$],[[\1]])])
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[,],[],[\+],[X],[[^ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789]+],[_],dnl
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[^._?\(.*\)_.$],[[\1]])])
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17
autogen.sh
17
autogen.sh
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@ -57,8 +57,21 @@ fi
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rm -rf autoconf/*m4.old
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"$AUTOHEADER" -B autoconf
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"$AUTOCONF" -B autoconf
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rm -rf autom4te.cache config.log config.status \
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config/config.h Makefile doc/Makefile
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(
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echo '#!/bin/sh'
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"$AUTOCONF" -B autoconf \
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-t AC_CONFIG_HEADERS:'rm -f $*' \
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-t AC_CONFIG_FILES:'rm -f $*'
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echo 'rm -f config.log config.status'
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echo 'rm -rf autom4te.cache'
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) > autoconf/clean.sh
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sh autoconf/clean.sh
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# Try to regenerate unconfig.h if Perl is available and unconfig.pl
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# is present in the autoconf directory.
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if [ -n "$(which perl)" -a -f autoconf/unconfig.pl ]; then
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perl autoconf/unconfig.pl . config/config.h.in config/unconfig.h
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fi
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if $recheck; then
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# This bizarre statement has to do with how config.status quotes its output
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@ -5,7 +5,7 @@
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#ifndef alloc_size_func2
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# ifdef HAVE_FUNC_ATTRIBUTE2_ALLOC_SIZE
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# define alloc_size_func2(x1,x2) __attribute__((alloc_size(x1,x2)))
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# define alloc_size_func2(x1,x2) ATTRIBUTE(alloc_size(x1,x2))
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# else
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# define alloc_size_func2(x1,x2)
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# endif
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@ -13,7 +13,7 @@
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#ifndef alloc_size_func2_ptr
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# ifdef HAVE_FUNC_PTR_ATTRIBUTE2_ALLOC_SIZE
|
||||
# define alloc_size_func2_ptr(x1,x2) __attribute__((alloc_size(x1,x2)))
|
||||
# define alloc_size_func2_ptr(x1,x2) ATTRIBUTE(alloc_size(x1,x2))
|
||||
# else
|
||||
# define alloc_size_func2_ptr(x1,x2)
|
||||
# endif
|
||||
|
|
@ -21,7 +21,7 @@
|
|||
|
||||
#ifndef end_with_null
|
||||
# ifdef HAVE_FUNC_ATTRIBUTE_SENTINEL
|
||||
# define end_with_null __attribute__((sentinel))
|
||||
# define end_with_null ATTRIBUTE(sentinel)
|
||||
# else
|
||||
# define end_with_null
|
||||
# endif
|
||||
|
|
@ -29,7 +29,7 @@
|
|||
|
||||
#ifndef end_with_null_ptr
|
||||
# ifdef HAVE_FUNC_PTR_ATTRIBUTE_SENTINEL
|
||||
# define end_with_null_ptr __attribute__((sentinel))
|
||||
# define end_with_null_ptr ATTRIBUTE(sentinel)
|
||||
# else
|
||||
# define end_with_null_ptr
|
||||
# endif
|
||||
|
|
@ -37,7 +37,7 @@
|
|||
|
||||
#ifndef format_func3
|
||||
# ifdef HAVE_FUNC_ATTRIBUTE3_FORMAT
|
||||
# define format_func3(x1,x2,x3) __attribute__((format(x1,x2,x3)))
|
||||
# define format_func3(x1,x2,x3) ATTRIBUTE(format(x1,x2,x3))
|
||||
# else
|
||||
# define format_func3(x1,x2,x3)
|
||||
# endif
|
||||
|
|
@ -45,7 +45,7 @@
|
|||
|
||||
#ifndef format_func3_ptr
|
||||
# ifdef HAVE_FUNC_PTR_ATTRIBUTE3_FORMAT
|
||||
# define format_func3_ptr(x1,x2,x3) __attribute__((format(x1,x2,x3)))
|
||||
# define format_func3_ptr(x1,x2,x3) ATTRIBUTE(format(x1,x2,x3))
|
||||
# else
|
||||
# define format_func3_ptr(x1,x2,x3)
|
||||
# endif
|
||||
|
|
@ -53,7 +53,7 @@
|
|||
|
||||
#ifndef const_func
|
||||
# ifdef HAVE_FUNC_ATTRIBUTE_CONST
|
||||
# define const_func __attribute__((const))
|
||||
# define const_func ATTRIBUTE(const)
|
||||
# else
|
||||
# define const_func
|
||||
# endif
|
||||
|
|
@ -61,7 +61,7 @@
|
|||
|
||||
#ifndef const_func_ptr
|
||||
# ifdef HAVE_FUNC_PTR_ATTRIBUTE_CONST
|
||||
# define const_func_ptr __attribute__((const))
|
||||
# define const_func_ptr ATTRIBUTE(const)
|
||||
# else
|
||||
# define const_func_ptr
|
||||
# endif
|
||||
|
|
@ -69,7 +69,7 @@
|
|||
|
||||
#ifndef pure_func
|
||||
# ifdef HAVE_FUNC_ATTRIBUTE_PURE
|
||||
# define pure_func __attribute__((pure))
|
||||
# define pure_func ATTRIBUTE(pure)
|
||||
# else
|
||||
# define pure_func
|
||||
# endif
|
||||
|
|
@ -77,7 +77,7 @@
|
|||
|
||||
#ifndef pure_func_ptr
|
||||
# ifdef HAVE_FUNC_PTR_ATTRIBUTE_PURE
|
||||
# define pure_func_ptr __attribute__((pure))
|
||||
# define pure_func_ptr ATTRIBUTE(pure)
|
||||
# else
|
||||
# define pure_func_ptr
|
||||
# endif
|
||||
|
|
@ -85,7 +85,7 @@
|
|||
|
||||
#ifndef noreturn_func
|
||||
# ifdef HAVE_FUNC_ATTRIBUTE_NORETURN
|
||||
# define noreturn_func __attribute__((noreturn))
|
||||
# define noreturn_func ATTRIBUTE(noreturn)
|
||||
# else
|
||||
# define noreturn_func
|
||||
# endif
|
||||
|
|
@ -93,7 +93,7 @@
|
|||
|
||||
#ifndef unlikely_func
|
||||
# ifdef HAVE_FUNC_ATTRIBUTE_COLD
|
||||
# define unlikely_func __attribute__((cold))
|
||||
# define unlikely_func ATTRIBUTE(cold)
|
||||
# else
|
||||
# define unlikely_func
|
||||
# endif
|
||||
|
|
@ -101,7 +101,7 @@
|
|||
|
||||
#ifndef unlikely_func_ptr
|
||||
# ifdef HAVE_FUNC_PTR_ATTRIBUTE_COLD
|
||||
# define unlikely_func_ptr __attribute__((cold))
|
||||
# define unlikely_func_ptr ATTRIBUTE(cold)
|
||||
# else
|
||||
# define unlikely_func_ptr
|
||||
# endif
|
||||
|
|
@ -109,7 +109,7 @@
|
|||
|
||||
#ifndef unused_func
|
||||
# ifdef HAVE_FUNC_ATTRIBUTE_UNUSED
|
||||
# define unused_func __attribute__((unused))
|
||||
# define unused_func ATTRIBUTE(unused)
|
||||
# else
|
||||
# define unused_func
|
||||
# endif
|
||||
|
|
@ -117,7 +117,7 @@
|
|||
|
||||
#ifndef unused_func_ptr
|
||||
# ifdef HAVE_FUNC_PTR_ATTRIBUTE_UNUSED
|
||||
# define unused_func_ptr __attribute__((unused))
|
||||
# define unused_func_ptr ATTRIBUTE(unused)
|
||||
# else
|
||||
# define unused_func_ptr
|
||||
# endif
|
||||
|
|
@ -125,7 +125,7 @@
|
|||
|
||||
#ifndef noreturn_func_ptr
|
||||
# ifdef HAVE_FUNC_PTR_ATTRIBUTE_NORETURN
|
||||
# define noreturn_func_ptr __attribute__((noreturn))
|
||||
# define noreturn_func_ptr ATTRIBUTE(noreturn)
|
||||
# else
|
||||
# define noreturn_func_ptr
|
||||
# endif
|
||||
|
|
@ -133,7 +133,7 @@
|
|||
|
||||
#ifndef never_null
|
||||
# ifdef HAVE_FUNC_ATTRIBUTE_RETURNS_NONNULL
|
||||
# define never_null __attribute__((returns_nonnull))
|
||||
# define never_null ATTRIBUTE(returns_nonnull)
|
||||
# else
|
||||
# define never_null
|
||||
# endif
|
||||
|
|
@ -141,7 +141,7 @@
|
|||
|
||||
#ifndef never_null_ptr
|
||||
# ifdef HAVE_FUNC_PTR_ATTRIBUTE_RETURNS_NONNULL
|
||||
# define never_null_ptr __attribute__((returns_nonnull))
|
||||
# define never_null_ptr ATTRIBUTE(returns_nonnull)
|
||||
# else
|
||||
# define never_null_ptr
|
||||
# endif
|
||||
|
|
@ -149,7 +149,7 @@
|
|||
|
||||
#ifndef malloc_func
|
||||
# ifdef HAVE_FUNC_ATTRIBUTE_MALLOC
|
||||
# define malloc_func __attribute__((malloc))
|
||||
# define malloc_func ATTRIBUTE(malloc)
|
||||
# else
|
||||
# define malloc_func
|
||||
# endif
|
||||
|
|
@ -157,7 +157,7 @@
|
|||
|
||||
#ifndef malloc_func_ptr
|
||||
# ifdef HAVE_FUNC_PTR_ATTRIBUTE_MALLOC
|
||||
# define malloc_func_ptr __attribute__((malloc))
|
||||
# define malloc_func_ptr ATTRIBUTE(malloc)
|
||||
# else
|
||||
# define malloc_func_ptr
|
||||
# endif
|
||||
|
|
@ -165,7 +165,7 @@
|
|||
|
||||
#ifndef alloc_size_func1
|
||||
# ifdef HAVE_FUNC_ATTRIBUTE1_ALLOC_SIZE
|
||||
# define alloc_size_func1(x1) __attribute__((alloc_size(x1)))
|
||||
# define alloc_size_func1(x1) ATTRIBUTE(alloc_size(x1))
|
||||
# else
|
||||
# define alloc_size_func1(x1)
|
||||
# endif
|
||||
|
|
@ -173,7 +173,7 @@
|
|||
|
||||
#ifndef alloc_size_func1_ptr
|
||||
# ifdef HAVE_FUNC_PTR_ATTRIBUTE1_ALLOC_SIZE
|
||||
# define alloc_size_func1_ptr(x1) __attribute__((alloc_size(x1)))
|
||||
# define alloc_size_func1_ptr(x1) ATTRIBUTE(alloc_size(x1))
|
||||
# else
|
||||
# define alloc_size_func1_ptr(x1)
|
||||
# endif
|
||||
|
|
|
|||
92
configure.ac
92
configure.ac
|
|
@ -1,4 +1,4 @@
|
|||
dnl Process this file with autoconf 2.69 or later to produce
|
||||
dnl Process this file with autoconf 2.71 or later to produce
|
||||
dnl a configure script.
|
||||
AC_PREREQ([2.71])
|
||||
AC_INIT
|
||||
|
|
@ -28,21 +28,9 @@ PA_ADD_CPPFLAGS([-std=c17], [], [],
|
|||
[PA_ADD_CPPFLAGS([-std=c11], [], [],
|
||||
[PA_ADD_CPPFLAGS([-std=c99])])])
|
||||
|
||||
dnl Compile and link with gdb debug extensions
|
||||
PA_ARG_ENABLED([gdb],
|
||||
[compile with extra debug information for GDB debugger],
|
||||
[PA_ADD_CFLAGS([-ggdb3])])
|
||||
|
||||
dnl Disable optimization
|
||||
PA_ARG_DISABLED([optimization],
|
||||
[compile without optimization (-O0) to help debugging],
|
||||
[PA_ADD_CFLAGS([-O0])
|
||||
PA_ADD_CFLAGS([-fno-omit-frame-pointer])])
|
||||
|
||||
dnl Profiling
|
||||
PA_ARG_ENABLED([profiling],
|
||||
[compile with profiling (-pg option)],
|
||||
[PA_ADD_CFLAGS([-pg])])
|
||||
dnl Options for debugging and profiling
|
||||
PA_OPTION_DEBUG
|
||||
PA_OPTION_PROFILING
|
||||
|
||||
dnl Large files
|
||||
AC_SYS_LARGEFILE
|
||||
|
|
@ -56,13 +44,6 @@ AH_TEMPLATE(ABORT_ON_PANIC,
|
|||
|
||||
dnl Checks for typedefs, structures, and compiler characteristics.
|
||||
AC_TYPE_SIZE_T
|
||||
AC_C_BIGENDIAN(AC_DEFINE(WORDS_BIGENDIAN),AC_DEFINE(WORDS_LITTLEENDIAN),,)
|
||||
AH_TEMPLATE(WORDS_BIGENDIAN,
|
||||
[Define to 1 if your processor stores words with the most significant
|
||||
byte first (like Motorola and SPARC, unlike Intel and VAX).])
|
||||
AH_TEMPLATE(WORDS_LITTLEENDIAN,
|
||||
[Define to 1 if your processor stores words with the least significant
|
||||
byte first (like Intel and VAX, unlike Motorola and SPARC).])
|
||||
|
||||
dnl LLVM doesn't error out on invalid -W options unless this option is
|
||||
dnl specified first. Enable this so this script can actually discover
|
||||
|
|
@ -170,7 +151,7 @@ AC_CHECK_INCLUDES_DEFAULT
|
|||
|
||||
PA_ADD_HEADERS(string.h)
|
||||
PA_ADD_HEADERS(stdarg.h)
|
||||
AC_CHECK_HEADERS(inttypes.h)
|
||||
PA_ADD_HEADERS(inttypes.h)
|
||||
AC_CHECK_HEADERS(strings.h)
|
||||
AC_HEADER_STDBOOL
|
||||
AC_CHECK_HEADERS(stdnoreturn.h)
|
||||
|
|
@ -261,25 +242,7 @@ AC_SUBST([PDFOPT])
|
|||
dnl
|
||||
dnl Look for byte-swapping support...
|
||||
dnl
|
||||
PA_ADD_HEADERS(endian.h sys/endian.h machine/endian.h)
|
||||
PA_HAVE_FUNC(cpu_to_le16, (0))
|
||||
PA_HAVE_FUNC(cpu_to_le32, (0))
|
||||
PA_HAVE_FUNC(cpu_to_le64, (0))
|
||||
PA_HAVE_FUNC(__cpu_to_le16, (0))
|
||||
PA_HAVE_FUNC(__cpu_to_le32, (0))
|
||||
PA_HAVE_FUNC(__cpu_to_le64, (0))
|
||||
PA_HAVE_FUNC(htole16, (0))
|
||||
PA_HAVE_FUNC(htole32, (0))
|
||||
PA_HAVE_FUNC(htole64, (0))
|
||||
PA_HAVE_FUNC(__bswap_16, (0))
|
||||
PA_HAVE_FUNC(__bswap_32, (0))
|
||||
PA_HAVE_FUNC(__bswap_64, (0))
|
||||
PA_HAVE_FUNC(__builtin_bswap16, (0))
|
||||
PA_HAVE_FUNC(__builtin_bswap32, (0))
|
||||
PA_HAVE_FUNC(__builtin_bswap64, (0))
|
||||
PA_HAVE_FUNC(_byteswap_ushort, (0))
|
||||
PA_HAVE_FUNC(_byteswap_ulong, (0))
|
||||
PA_HAVE_FUNC(_byteswap_uint64, (0))
|
||||
PA_ENDIAN
|
||||
|
||||
dnl
|
||||
dnl Some rather useful gcc extensions...
|
||||
|
|
@ -293,52 +256,22 @@ dnl support these, but don't define __GNUC__ as they don't support
|
|||
dnl some other features of gcc.
|
||||
dnl
|
||||
PA_ADD_CFLAGS([-Werror=attributes])
|
||||
PA_FUNC_ATTRIBUTE(noreturn)
|
||||
PA_FUNC_ATTRIBUTE(returns_nonnull,,,,,never_null)
|
||||
PA_FUNC_ATTRIBUTE(malloc)
|
||||
PA_FUNC_ATTRIBUTE(alloc_size,[1])
|
||||
PA_FUNC_ATTRIBUTE(alloc_size,[1,2])
|
||||
PA_FUNC_ATTRIBUTE(sentinel,,, [const char *, ...], ["a","b",NULL],end_with_null)
|
||||
PA_FUNC_ATTRIBUTE(format, [printf,1,2], int, [const char *, ...], ["%d",1])
|
||||
PA_FUNC_ATTRIBUTE(const)
|
||||
PA_FUNC_ATTRIBUTE(pure)
|
||||
PA_FUNC_ATTRIBUTE(cold,,,,,unlikely_func)
|
||||
PA_FUNC_ATTRIBUTE(unused)
|
||||
PA_FUNC_ATTRIBUTE_ERROR
|
||||
PA_COMMON_ATTRIBUTES
|
||||
|
||||
dnl
|
||||
dnl support function sections (if available)
|
||||
dnl
|
||||
PA_ARG_DISABLED([sections],
|
||||
[do not try to compile with function/data section support],
|
||||
[],
|
||||
[PA_ADD_CFLAGS([-ffunction-sections])
|
||||
PA_ADD_CFLAGS([-fdata-sections])
|
||||
PA_ADD_LDFLAGS([-Wl,--gc-sections])]
|
||||
)
|
||||
PA_OPTION_GC
|
||||
|
||||
dnl
|
||||
dnl support LTO
|
||||
dnl
|
||||
PA_ARG_ENABLED([lto],
|
||||
[compile with gcc-style link time optimization],
|
||||
[PA_ADD_CFLAGS([-flto])
|
||||
dnl Note: we use _PROG rather than _TOOL since we are prepending the full
|
||||
dnl CC name which ought to already contain the host triplet if needed
|
||||
ccbase=`echo "$CC" | awk '{ print $1; }'`
|
||||
AC_CHECK_PROGS(CC_AR, [${ccbase}-ar], [$ac_cv_prog_AR])
|
||||
AR="$CC_AR"
|
||||
AC_CHECK_PROGS(CC_RANLIB, [${ccbase}-ranlib], [$ac_cv_prog_RANLIB])
|
||||
RANLIB="$CC_RANLIB"], [])
|
||||
PA_OPTION_LTO
|
||||
|
||||
dnl
|
||||
dnl support sanitizers (if available)
|
||||
dnl
|
||||
PA_ARG_ENABLED([sanitizer],
|
||||
[compile with sanitizers enabled],
|
||||
[PA_ADD_CFLAGS([-fno-omit-frame-pointer])
|
||||
PA_ADD_CFLAGS([-fsanitize=address])
|
||||
PA_ADD_CFLAGS([-fsanitize=undefined])])
|
||||
PA_OPTION_SANITIZER
|
||||
|
||||
dnl
|
||||
dnl Don't make symbols visible, there is no point and it just
|
||||
|
|
@ -408,10 +341,5 @@ dnl
|
|||
PA_CHECK_BAD_STDC_INLINE
|
||||
PA_C_TYPEOF
|
||||
|
||||
dnl
|
||||
dnl support ccache
|
||||
dnl
|
||||
PA_ARG_ENABLED([ccache], [compile with ccache], [CC="ccache $CC"], [])
|
||||
|
||||
AC_CONFIG_FILES([Makefile doc/Makefile])
|
||||
AC_OUTPUT
|
||||
|
|
|
|||
Loading…
Reference in a new issue