#41908 [NEW]: CFLAGS="-Os" ./configure --enable-debug fails

From: christian at hoffie dot info Operating system: Gentoo Linux PHP version: 5.2.3 PHP Bug Type: *Compile Issues Bug description: CFLAGS="-Os" ./configure --enable-debug fails Description: ------------ PHP's configure script incorrectly manipulates CFLAGS and CXXFLAGS when running with --enable-debug or --enable-gcov. When CFLAGS or CXXFLAGS contains -Os (optimize for size), the configure script builds a bad list of CFLAGS/CXXFLAGS and as such configure fails in a later stage. I created a small patch[1] which should solve that, I'm not completely sure whether it's a good idea to remove that -O stuff at all -- does appending -O0 after user-supplied flags not lead to the expected result (building with -O0 and not -O2 for instance)? [1] http://overlays.gentoo.org/proj/php/browser/patches/php-patches/5.2.3/5.2.3/php5.2.3-configure-Os-fix.patch?rev=1237 Reproduce code: --------------- CFLAGS="-Os" ./configure --enable-debug (same if you replace CFLAGS by CXXFLAGS or --enable-debug with --enable-gcov) Actual result: -------------- christian@tux /tmp/php-5.2.3 $ env | grep FLAGS CXXFLAGS=-Os CFLAGS=-Os christian@tux /tmp/php-5.2.3 $ ./configure --disable-all --enable-debug [...] Configuring libtool checking build system type... i686-pc-linux-gnu checking for ld used by gcc... /usr/i686-pc-linux-gnu/bin/ld checking if the linker (/usr/i686-pc-linux-gnu/bin/ld) is GNU ld... yes checking for /usr/i686-pc-linux-gnu/bin/ld option to reload object files... -r checking for BSD-compatible nm... /usr/bin/nm -B checking how to recognise dependent libraries... pass_all checking for object suffix... configure: error: installation or configuration problem; compiler does not work Depending on ./configure options the output looks different. For example, with --with-xml you will see a libxml2 failure first. -- Edit bug report at http://bugs.php.net/?id=41908&edit=1 -- Try a CVS snapshot (PHP 4.4): http://bugs.php.net/fix.php?id=41908&r=trysnapshot44 Try a CVS snapshot (PHP 5.2): http://bugs.php.net/fix.php?id=41908&r=trysnapshot52 Try a CVS snapshot (PHP 6.0): http://bugs.php.net/fix.php?id=41908&r=trysnapshot60 Fixed in CVS: http://bugs.php.net/fix.php?id=41908&r=fixedcvs Fixed in release: http://bugs.php.net/fix.php?id=41908&r=alreadyfixed Need backtrace: http://bugs.php.net/fix.php?id=41908&r=needtrace Need Reproduce Script: http://bugs.php.net/fix.php?id=41908&r=needscript Try newer version: http://bugs.php.net/fix.php?id=41908&r=oldversion Not developer issue: http://bugs.php.net/fix.php?id=41908&r=support Expected behavior: http://bugs.php.net/fix.php?id=41908&r=notwrong Not enough info: http://bugs.php.net/fix.php?id=41908&r=notenoughinfo Submitted twice: http://bugs.php.net/fix.php?id=41908&r=submittedtwice register_globals: http://bugs.php.net/fix.php?id=41908&r=globals PHP 3 support discontinued: http://bugs.php.net/fix.php?id=41908&r=php3 Daylight Savings: http://bugs.php.net/fix.php?id=41908&r=dst IIS Stability: http://bugs.php.net/fix.php?id=41908&r=isapi Install GNU Sed: http://bugs.php.net/fix.php?id=41908&r=gnused Floating point limitations: http://bugs.php.net/fix.php?id=41908&r=float No Zend Extensions: http://bugs.php.net/fix.php?id=41908&r=nozend MySQL Configuration Error: http://bugs.php.net/fix.php?id=41908&r=mysqlcfg