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Let the user specify custom CFLAGS on the make command

line. Previously custom CFLAGS worked only when they were
passed to configure.
This commit is contained in:
Lasse Collin 2009-02-09 14:54:31 +02:00
parent 53f7598998
commit a3bbbe05d3
2 changed files with 31 additions and 29 deletions

View file

@ -39,6 +39,7 @@ AC_CANONICAL_HOST
echo
echo "Configure options:"
AM_CFLAGS=
#############
@ -455,7 +456,7 @@ if test "x$enable_threads" = xyes; then
echo "Threading support:"
ACX_PTHREAD
LIBS="$LIBS $PTHREAD_LIBS"
CFLAGS="$PTHREAD_CFLAGS $CFLAGS"
AM_CFLAGS="$AM_CFLAGS $PTHREAD_CFLAGS"
CC="$PTHREAD_CC"
fi
@ -652,7 +653,7 @@ main()
###############################################################################
# If using GCC, set some additional CFLAGS:
# If using GCC, set some additional AM_CFLAGS:
###############################################################################
Wno_uninitialized=no
@ -662,7 +663,7 @@ if test "x$GCC" = xyes ; then
echo "GCC extensions:"
gl_VISIBILITY
if test -n "$CFLAG_VISIBILITY" ; then
CFLAGS="$CFLAG_VISIBILITY $CFLAGS"
AM_CFLAGS="$AM_CFLAGS $CFLAG_VISIBILITY"
fi
# -Wno-uninitialized is needed with -Werror with SHA256 code
@ -686,40 +687,38 @@ if test "x$GCC" = xyes ; then
# * -Winline, -Wdisabled-optimization, -Wunsafe-loop-optimizations
# don't seem so useful here; at least the last one gives some
# warnings which are not bugs.
#
# The flags are in reverse order below so they end up in "beautiful"
# order on the actual command line.
for NEW_FLAG in \
-Wredundant-decls \
-Wmissing-noreturn \
-Wmissing-declarations \
-Wmissing-prototypes \
-Wold-style-definition \
-Wstrict-prototypes \
-Waggregate-return \
-Wlogical-op \
-Wwrite-strings \
-Wbad-function-cast \
-Wpointer-arith \
-Wshadow \
-Wundef \
-Wfloat-equal \
-Wstrict-aliasing \
-Wmissing-include-dirs \
-Winit-self \
-Wformat=2 \
-Wall \
-Wextra \
-Wall
-Wformat=2 \
-Winit-self \
-Wmissing-include-dirs \
-Wstrict-aliasing \
-Wfloat-equal \
-Wundef \
-Wshadow \
-Wpointer-arith \
-Wbad-function-cast \
-Wwrite-strings \
-Wlogical-op \
-Waggregate-return \
-Wstrict-prototypes \
-Wold-style-definition \
-Wmissing-prototypes \
-Wmissing-declarations \
-Wmissing-noreturn \
-Wredundant-decls
do
AC_MSG_CHECKING([if $CC accepts $NEW_FLAG])
OLD_CFLAGS="$CFLAGS"
CFLAGS="$NEW_FLAG $CFLAGS"
CFLAGS="$CFLAGS $NEW_FLAG"
AC_COMPILE_IFELSE([void foo(void) { }], [
AM_CFLAGS="$AM_CFLAGS $NEW_FLAG"
AC_MSG_RESULT([yes])
], [
CFLAGS="$OLD_CFLAGS"
AC_MSG_RESULT([no])
])
CFLAGS="$OLD_CFLAGS"
done
AC_ARG_ENABLE([werror],
@ -727,7 +726,7 @@ if test "x$GCC" = xyes ; then
compilation on all compiler warnings.]),
[], [enable_werror=no])
if test "x$enable_werror" = "xyes"; then
CFLAGS="-Werror $CFLAGS"
AM_CFLAGS="$AM_CFLAGS -Werror"
fi
fi
@ -744,6 +743,9 @@ echo
# functions.
AM_CONDITIONAL([COND_GNULIB], test -n "$LIBOBJS")
# Add default AM_CFLAGS.
AC_SUBST([AM_CFLAGS])
AC_CONFIG_FILES([
Doxyfile
Makefile

View file

@ -49,6 +49,6 @@ libcheck_la_SOURCES += sha256.c
# Hide bogus warning to allow usage of -Werror. If more issues like this
# pop up, we'll drop -Werror.
if COND_WNO_UNINITIALIZED
CFLAGS += -Wno-uninitialized
AM_CFLAGS += -Wno-uninitialized
endif
endif