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fixincludes (str{len,spn,cspn} return value): Handle different layout on sysV88.

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* fixincludes (str{len,spn,cspn} return value): Handle different
        layout on sysV88.
        (hypot): Provide a fake for hypot which is broken on
        m88k-motorola-sysv3.

From-SVN: r17062
This commit is contained in:
Manfred Hollstein 1997-12-12 06:53:30 +00:00 • committed by Jeff Law
parent 0a6969ad7c
commit 7567d496ec
2 changed files with 53 additions and 0 deletions
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7
gcc/ChangeLog
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@ -1,3 +1,10 @@
Thu Dec 11 23:55:17 1997 Manfred Hollstein <manfred@s-direktnet.de>
* fixincludes (str{len,spn,cspn} return value): Handle different
layout on sysV88.
(hypot): Provide a fake for hypot which is broken on
m88k-motorola-sysv3.
Thu Dec 11 23:50:17 1997 John F. Carr <jfc@mit.edu>
* tree.c, tree.h: Change tree_code_type, tree_code_length, and

46
gcc/fixincludes
View file

@ -12,6 +12,14 @@ INPUT=${2-${INPUT-/usr/include}}
# Directory in which to store the results.
LIB=${1?"fixincludes: output directory not specified"}
# Define what target system we're fixing.
if test -r ./Makefile; then
target_canonical="`sed -n -e 's,^target[ ]*=[ ]*\(.*\)$,\1,p' < Makefile`"
test -z "${target_canonical}" && target_canonical=unknown
else
target_canonical=unknown
fi
# Define PWDCMD as a command to use to get the working dir
# in the form that we want.
PWDCMD=pwd
@ -1983,6 +1991,7 @@ fi
# Correct the return type for strlen in string.h on Lynx.
# Correct the argument type for ffs in string.h on Alpha OSF/1 V2.0.
# Add missing const for strdup on OSF/1 V3.0.
# On sysV88 layout is slightly different.
file=string.h
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
@ -2001,6 +2010,8 @@ if [ -r ${LIB}/$file ]; then
-e 's/^\( strncmp()\),\n\( strlen(),\)$/\1;\
extern unsigned int\
\2/'\
-e '/^extern int$/N'\
-e 's/^extern int\(\n strlen(),\)/extern size_t\1/' \
${LIB}/$file > ${LIB}/${file}.sed
rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
if cmp $file ${LIB}/$file >/dev/null 2>&1; then
@ -2286,6 +2297,41 @@ do
fi
done
# libm.a on m88k-motorola-sysv3 contains a stupid optimization for function
# hypot(), which returns the second argument without even looking at its value
# if the other is 0.0
file=math.h
if [ $target_canonical = m88k-motorola-sysv3 ]; then
if [ -r $file ] && [ ! -r ${LIB}/$file ]; then
cp $file ${LIB}/$file >/dev/null 2>&1 || echo "Can't copy $file"
chmod +w ${LIB}/$file 2>/dev/null
chmod a+r ${LIB}/$file 2>/dev/null
fi
if [ -r ${LIB}/$file ]; then
echo Fixing $file, hypot definition
sed -e '/^extern double hypot();$/a\
\/* Workaround a stupid Motorola optimization if one\
of x or y is 0.0 and the other is negative! *\/\
#ifdef __STDC__\
static __inline__ double fake_hypot (double x, double y)\
#else\
static __inline__ double fake_hypot (x, y)\
double x, y;\
#endif\
{\
return fabs (hypot (x, y));\
}\
#define hypot fake_hypot
' \
${LIB}/$file > ${LIB}/${file}.sed
rm -f ${LIB}/$file; mv ${LIB}/${file}.sed ${LIB}/$file
if cmp $file ${LIB}/$file >/dev/null 2>&1; then
rm -f ${LIB}/$file
fi
fi
fi
# math.h on SunOS 4 puts the declaration of matherr before the definition
# of struct exception, so the prototype (added by fixproto) causes havoc.
file=math.h