generic-library/libreSSL
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catch GCC versions that only warn on unused flags

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Noticed while building with GCC 4.2 with HP-UX. Switching the ERROR to a
WARN for a first release while we continue to survey the field.
This commit is contained in:
Brent Cook 2015-01-06 17:45:14 -06:00
parent f2d68c7d21
commit ec81c28219
1 changed files with 3 additions and 3 deletions
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6
configure.ac
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@ -104,7 +104,7 @@ AC_DEFUN([CHECK_CFLAG], [
AC_LANG_ASSERT(C)
AC_MSG_CHECKING([if $saved_CC supports "$1"])
old_cflags="$CFLAGS"
CFLAGS=$1
CFLAGS="$1 -Wall -Werror"
AC_TRY_LINK([
#include <stdio.h>
],
@ -121,7 +121,7 @@ AC_DEFUN([CHECK_LDFLAG], [
AC_LANG_ASSERT(C)
AC_MSG_CHECKING([if $saved_LD supports "$1"])
old_ldflags="$LDFLAGS"
LDFLAGS=$1
LDFLAGS="$1 -Wall -Werror"
AC_TRY_LINK([
#include <stdio.h>
],
@ -151,7 +151,7 @@ AS_IF([test "x$enable_hardening" = "xyes"], [
AS_IF([test "x$enable_hardening" = "xyes" -a "x$HOST_OS" != "xwin"], [
CHECK_CFLAG([[-fstack-protector-strong]],
CHECK_CFLAG([[-fstack-protector-all]],
AC_MSG_ERROR([compiler does appear to support stack protection - use --disable-hardening to override])
AC_MSG_WARN([compiler does not appear to support stack protection])
)
)
])