Commit d84757e3 authored by kili's avatar kili

Use -W, not -Werror, for gcc older than 3.4

parent 0fc3078a
......@@ -558,6 +558,7 @@ fi
if test "$fp_have_gcc" = "NO" -a -d $srcdir/ghc; then
AC_MSG_ERROR([gcc is required])
fi
GccLT34=
AC_CACHE_CHECK([version of gcc], [fp_cv_gcc_version],
[if test "$fp_have_gcc" = "YES"; then
fp_cv_gcc_version="`$CC -v 2>&1 | grep 'version ' | sed -e 's/.*version [[^0-9]]*\([[0-9.]]*\).*/\1/g'`"
......@@ -566,12 +567,14 @@ AC_CACHE_CHECK([version of gcc], [fp_cv_gcc_version],
# See #2770: gcc 2.95 doesn't work any more, apparently. There probably
# isn't a very good reason for that, but for now just make configure
# fail.
FP_COMPARE_VERSIONS([$fp_cv_gcc_version], [-lt], [3.4], GccLT34=YES)
else
fp_cv_gcc_version="not-installed"
fi
])
AC_SUBST([HaveGcc], [$fp_have_gcc])
AC_SUBST([GccVersion], [$fp_cv_gcc_version])
AC_SUBST(GccLT34)
])# FP_HAVE_GCC
AC_DEFUN([FP_MINGW_GCC],
......
......@@ -537,6 +537,7 @@ HaveGcc = @HaveGcc@
UseGcc = YES
WhatGccIsCalled = @WhatGccIsCalled@
GccVersion = @GccVersion@
GccLT34 = @GccLT34@
ifeq "$(strip $(HaveGcc))" "YES"
ifneq "$(strip $(UseGcc))" "YES"
CC = cc
......
......@@ -131,7 +131,12 @@ $(foreach way,$(rts_WAYS),$(eval $(call build-rts-way,$(way))))
# Flags for compiling every file
# We like plenty of warnings.
WARNING_OPTS += -Wall -Wextra
WARNING_OPTS += -Wall
ifeq "$(GccLT34)" "YES"
WARNING_OPTS += -W
else
WARNING_OPTS += -Wextra
endif
WARNING_OPTS += -Wstrict-prototypes
WARNING_OPTS += -Wmissing-prototypes
WARNING_OPTS += -Wmissing-declarations
......
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