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disable strict aliasing on AIX xlc and HP-UX aC++ compilers

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This commit is contained in:
Brent Cook 2015-07-16 11:34:07 -05:00
parent ddeb740426
commit b9291face3
2 changed files with 3 additions and 13 deletions
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6
m4/check-os-options.m4
View File

@ -1,13 +1,13 @@
# This must be called before AC_PROG_CC
AC_DEFUN([CHECK_OS_OPTIONS], [
CFLAGS="$CFLAGS -Wall -std=gnu99"
CFLAGS="$CFLAGS -Wall -std=gnu99 -fno-strict-aliasing"
case $host_os in
*aix*)
HOST_OS=aix
if test "`echo $CC | cut -d ' ' -f 1`" != "gcc" ; then
CFLAGS="$USER_CFLAGS"
CFLAGS="-qnoansialias $USER_CFLAGS"
fi
AC_SUBST([PLATFORM_LDADD], ['-lperfstat -lpthread'])
;;
@ -28,7 +28,7 @@ case $host_os in
if test "`echo $CC | cut -d ' ' -f 1`" = "gcc" ; then
CFLAGS="$CFLAGS -mlp64"
else
CFLAGS="-g -O2 +DD64 $USER_CFLAGS"
CFLAGS="-g -O2 +DD64 +Otype_safety=strong $USER_CFLAGS"
fi
CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=600 -D__STRICT_ALIGNMENT"
AC_SUBST([PLATFORM_LDADD], ['-lpthread'])

10
m4/disable-compiler-warnings.m4
View File

@ -26,14 +26,4 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
[AC_MSG_RESULT([no])]
)
CFLAGS="$save_cflags $AM_CFLAGS"
save_cflags="$CFLAGS"
CFLAGS=-fno-strict-aliasing
AC_MSG_CHECKING([whether CC supports -fno-strict-aliasing])
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
[AC_MSG_RESULT([yes])]
[AM_CFLAGS=-fno-strict-aliasing],
[AC_MSG_RESULT([no])]
)
CFLAGS="$save_cflags $AM_CFLAGS"
])