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| author | Brent Cook <bcook@openbsd.org> | 2015-07-16 11:34:07 -0500 |
|---|---|---|
| committer | Brent Cook <bcook@openbsd.org> | 2015-07-16 11:34:07 -0500 |
| commit | b9291face3ec7c804b6171857f95594d12384706 (patch) | |
| tree | 8f7e21142622805ef06aa9fa1000d6cd6965b637 /m4 | |
| parent | ddeb740426716de91135def46d8408da9d730586 (diff) | |
| download | portable-b9291face3ec7c804b6171857f95594d12384706.tar.gz portable-b9291face3ec7c804b6171857f95594d12384706.tar.bz2 portable-b9291face3ec7c804b6171857f95594d12384706.zip | |
disable strict aliasing on AIX xlc and HP-UX aC++ compilers
Diffstat (limited to 'm4')
| -rw-r--r-- | m4/check-os-options.m4 | 6 | ||||
| -rw-r--r-- | m4/disable-compiler-warnings.m4 | 10 |
2 files changed, 3 insertions, 13 deletions
diff --git a/m4/check-os-options.m4 b/m4/check-os-options.m4 index 371ffb3..4a7aec8 100644 --- a/m4/check-os-options.m4 +++ b/m4/check-os-options.m4 | |||
| @@ -1,13 +1,13 @@ | |||
| 1 | # This must be called before AC_PROG_CC | 1 | # This must be called before AC_PROG_CC |
| 2 | AC_DEFUN([CHECK_OS_OPTIONS], [ | 2 | AC_DEFUN([CHECK_OS_OPTIONS], [ |
| 3 | 3 | ||
| 4 | CFLAGS="$CFLAGS -Wall -std=gnu99" | 4 | CFLAGS="$CFLAGS -Wall -std=gnu99 -fno-strict-aliasing" |
| 5 | 5 | ||
| 6 | case $host_os in | 6 | case $host_os in |
| 7 | *aix*) | 7 | *aix*) |
| 8 | HOST_OS=aix | 8 | HOST_OS=aix |
| 9 | if test "`echo $CC | cut -d ' ' -f 1`" != "gcc" ; then | 9 | if test "`echo $CC | cut -d ' ' -f 1`" != "gcc" ; then |
| 10 | CFLAGS="$USER_CFLAGS" | 10 | CFLAGS="-qnoansialias $USER_CFLAGS" |
| 11 | fi | 11 | fi |
| 12 | AC_SUBST([PLATFORM_LDADD], ['-lperfstat -lpthread']) | 12 | AC_SUBST([PLATFORM_LDADD], ['-lperfstat -lpthread']) |
| 13 | ;; | 13 | ;; |
| @@ -28,7 +28,7 @@ case $host_os in | |||
| 28 | if test "`echo $CC | cut -d ' ' -f 1`" = "gcc" ; then | 28 | if test "`echo $CC | cut -d ' ' -f 1`" = "gcc" ; then |
| 29 | CFLAGS="$CFLAGS -mlp64" | 29 | CFLAGS="$CFLAGS -mlp64" |
| 30 | else | 30 | else |
| 31 | CFLAGS="-g -O2 +DD64 $USER_CFLAGS" | 31 | CFLAGS="-g -O2 +DD64 +Otype_safety=strong $USER_CFLAGS" |
| 32 | fi | 32 | fi |
| 33 | CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=600 -D__STRICT_ALIGNMENT" | 33 | CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=600 -D__STRICT_ALIGNMENT" |
| 34 | AC_SUBST([PLATFORM_LDADD], ['-lpthread']) | 34 | AC_SUBST([PLATFORM_LDADD], ['-lpthread']) |
diff --git a/m4/disable-compiler-warnings.m4 b/m4/disable-compiler-warnings.m4 index 9dae100..2792722 100644 --- a/m4/disable-compiler-warnings.m4 +++ b/m4/disable-compiler-warnings.m4 | |||
| @@ -26,14 +26,4 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], | |||
| 26 | [AC_MSG_RESULT([no])] | 26 | [AC_MSG_RESULT([no])] |
| 27 | ) | 27 | ) |
| 28 | CFLAGS="$save_cflags $AM_CFLAGS" | 28 | CFLAGS="$save_cflags $AM_CFLAGS" |
| 29 | |||
| 30 | save_cflags="$CFLAGS" | ||
| 31 | CFLAGS=-fno-strict-aliasing | ||
| 32 | AC_MSG_CHECKING([whether CC supports -fno-strict-aliasing]) | ||
| 33 | AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])], | ||
| 34 | [AC_MSG_RESULT([yes])] | ||
| 35 | [AM_CFLAGS=-fno-strict-aliasing], | ||
| 36 | [AC_MSG_RESULT([no])] | ||
| 37 | ) | ||
| 38 | CFLAGS="$save_cflags $AM_CFLAGS" | ||
| 39 | ]) | 29 | ]) |