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Adds autoconf test for -Wno-pointer-sign compliler option.

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This commit is contained in:
Ondrej Zajicek 2010-03-24 16:39:18 +01:00
parent 4d9a0d1f02
commit b1c030b0ba
2 changed files with 27 additions and 3 deletions
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13
aclocal.m4 vendored
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@ -147,6 +147,19 @@ if test -z "$bird_cv_sys_linux_version" ; then
fi
])])
AC_DEFUN(BIRD_CHECK_GCC_OPTIONS,
[AC_CACHE_VAL(bird_cv_c_option_no_pointer_sign, [
cat >conftest.c <<EOF
int main(void)
{ return 0; }
EOF
if $CC -Wall -Wno-pointer-sign conftest.c >&AS_MESSAGE_LOG_FD 2>&1 ; then
bird_cv_c_option_no_pointer_sign=yes
else
bird_cv_c_option_no_pointer_sign=no
fi
])])
# BIRD_CHECK_PROG_FLAVOR_GNU(PROGRAM-PATH, IF-SUCCESS, [IF-FAILURE])
# copied autoconf internal _AC_PATH_PROG_FLAVOR_GNU
m4_define([BIRD_CHECK_PROG_FLAVOR_GNU],

17
configure.in
View File

@ -55,17 +55,28 @@ AC_SEARCH_LIBS(clock_gettime,[c rt posix4])
AC_CANONICAL_HOST
AC_MSG_CHECKING([what CFLAGS should we use])
# Store this value because ac_test_CFLAGS is overwritten by AC_PROG_CC
if test "$ac_test_CFLAGS" != set ; then
CFLAGS="$CFLAGS -Wall -Wstrict-prototypes -Wno-pointer-sign -Wno-parentheses"
bird_cflags_default=yes
fi
AC_MSG_RESULT($CFLAGS)
AC_PROG_CC
if test -z "$GCC" ; then
AC_MSG_ERROR([This program requires the GNU C Compiler.])
fi
AC_MSG_CHECKING([what CFLAGS should we use])
if test "$bird_cflags_default" == yes ; then
BIRD_CHECK_GCC_OPTIONS
CFLAGS="$CFLAGS -Wall -Wstrict-prototypes -Wno-parentheses"
if test "$bird_cv_c_option_no_pointer_sign" == yes ; then
CFLAGS="$CFLAGS -Wno-pointer-sign"
fi
fi
AC_MSG_RESULT($CFLAGS)
AC_PROG_CPP
AC_PROG_INSTALL
AC_PROG_RANLIB