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* configure.ac: Add a better libgccjit test plus some morw err message

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* configure.ac (libgccjit_smoke_test, libgccjit_not_found)
	(libgccjit_broken): New functions.
This commit is contained in:
Andrea Corallo 2020-05-04 21:01:48 +01:00
parent c6a610ecdc
commit 766f4b96ee
1 changed files with 57 additions and 9 deletions
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66
configure.ac
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@ -3729,22 +3729,70 @@ emacs_major_version="${PACKAGE_VERSION%%.*}"
AC_SUBST(emacs_major_version)
### Emacs Lisp native compiler support
AC_DEFUN([libgccjit_smoke_test], [
AC_LANG_SOURCE(
[[#include <libgccjit.h>
#include <stdlib.h>
#include <stdio.h>
int
main (int argc, char **argv)
{
gcc_jit_context *ctxt;
gcc_jit_result *result;
ctxt = gcc_jit_context_acquire ();
if (!ctxt)
exit (1);
gcc_jit_type *int_type =
gcc_jit_context_get_type (ctxt, GCC_JIT_TYPE_INT);
gcc_jit_function *func =
gcc_jit_context_new_function (ctxt, NULL,
GCC_JIT_FUNCTION_EXPORTED,
int_type, "foo", 0, NULL, 0);
gcc_jit_block *block = gcc_jit_function_new_block (func, "foo");
gcc_jit_block_end_with_return (
block,
NULL,
gcc_jit_context_new_rvalue_from_int (ctxt, int_type, 1));
result = gcc_jit_context_compile (ctxt);
if (!result)
exit (1);
typedef int (*fn_type) (void);
fn_type foo =
(fn_type)gcc_jit_result_get_code (result, "foo");
if (!foo)
exit (1);
if (foo () != 1)
exit (1);
gcc_jit_context_release (ctxt);
gcc_jit_result_release (result);
return 0;
}]])])
AC_DEFUN([libgccjit_not_found], [
AC_MSG_ERROR([elisp native compiler requested but libgccjit not found.
If you are sure you want Emacs compiled without elisp native compiler, pass
--without-nativecomp
to configure.])])
AC_DEFUN([libgccjit_broken], [
AC_MSG_ERROR([Installed libgccjit has failed passing the smoke test.
Please report the issue to your distribution.
Here instructions on how to compile from source: https://gcc.gnu.org/wiki/JIT.])])
HAVE_NATIVE_COMP=no
LIBGCCJIT_LIB=
COMP_OBJ=
if test "${with_nativecomp}" != "no"; then
AC_CHECK_HEADER(libgccjit.h,
AC_CHECK_LIB(gccjit, gcc_jit_context_acquire, HAVE_NATIVE_COMP=yes))
if test "${HAVE_NATIVE_COMP}" = "yes"; then
emacs_save_LDFLAGS=$LDFLAGS
LDFLAGS="-lgccjit -ldl"
AC_RUN_IFELSE([libgccjit_smoke_test], [], [libgccjit_broken],
[AC_LINK_IFELSE([libgccjit_smoke_test], [], [libgccjit_not_found])])
LDFLAGS=$emacs_save_LDFLAGS
HAVE_NATIVE_COMP=yes
LIBGCCJIT_LIB="-lgccjit -ldl"
COMP_OBJ="comp.o"
AC_DEFINE(HAVE_NATIVE_COMP, 1, [Define to 1 if you have the libgccjit library (-lgccjit).])
else
AC_MSG_ERROR([elisp native compiler requested but libgccjit not found.
If you are sure you want Emacs compiled without elisp native compiler, pass
--without-nativecomp
to configure.])
fi
fi
if test "${HAVE_NATIVE_COMP}" = yes && test "${HAVE_PDUMPER}" = no; then
AC_MSG_ERROR(['--with-nativecomp' requires '--with-dumping=pdumper'])