On 08/11/2021 09.43, Paolo Bonzini wrote:
User flags should be passed via CFLAGS/CXXFLAGS/LDFLAGS,
or --extra-cflags/extra-cxxflags/--extra-ldflags on the
command line.
QEMU_CFLAGS, QEMU_CXXFLAGS and QEMU_LDFLAGS are reserved
for flags detected by configure, so do not add to them
and clear them at the beginning of the script.
Signed-off-by: Paolo Bonzini <[email protected]>
---
configure | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/configure b/configure
index 1ea26c67e5..2048a52b20 100755
--- a/configure
+++ b/configure
@@ -158,7 +158,7 @@ update_cxxflags() {
# Set QEMU_CXXFLAGS from QEMU_CFLAGS by filtering out those
# options which some versions of GCC's C++ compiler complain about
# because they only make sense for C programs.
- QEMU_CXXFLAGS="$QEMU_CXXFLAGS -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS
-D__STDC_FORMAT_MACROS"
+ QEMU_CXXFLAGS="-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS
-D__STDC_FORMAT_MACROS"
CONFIGURE_CXXFLAGS=$(echo "$CONFIGURE_CFLAGS" | sed
s/-std=gnu11/-std=gnu++11/)
for arg in $QEMU_CFLAGS; do
case $arg in
@@ -465,11 +465,13 @@ sdl2_config="${SDL2_CONFIG-${cross_prefix}sdl2-config}"
# left shift of signed integers is well defined and has the expected
# 2s-complement style results. (Both clang and gcc agree that it
# provides these semantics.)
-QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv $QEMU_CFLAGS"
+QEMU_CFLAGS="-fno-strict-aliasing -fno-common -fwrapv"
QEMU_CFLAGS="-Wundef -Wwrite-strings -Wmissing-prototypes $QEMU_CFLAGS"
QEMU_CFLAGS="-Wstrict-prototypes -Wredundant-decls $QEMU_CFLAGS"
QEMU_CFLAGS="-D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE
$QEMU_CFLAGS"
+QEMU_LDFLAGS=
+
# Flags that are needed during configure but later taken care of by Meson
CONFIGURE_CFLAGS="-std=gnu11 -Wall"
CONFIGURE_LDFLAGS=
Reviewed-by: Thomas Huth <[email protected]>
