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Autoconf will set a default CFLAGS of "-g -O2" if CFLAGS is not set. CFLAGS was defaulted to "" early in configure to prevent this. A recent commit ad9ccf660 (configure: Fix various new autotools warnings) added AC_USE_SYSTEM_EXTENSIONS, which pulls in the autoconf CFLAGS check, before we default CFLAGS and thus setting the autoconf default for CFLAGS. Move the default setting of CFLAGS to before AC_USE_SYSTEM_EXTENSIONS so that autoconf will see CFLAGS as set and not give it a default. CFLAGS is also moved above AC_CONFIG_AUX_DIR, because CFLAGS should be defaulted to "" as soon as possible to catch any autoconf macros that try to use some other default. Regardless, this currently has no effect as that macro does not consider the CFLAGS variable. Signed-off-by: Glenn Washburn <development@efficientek.com> Reviewed-by: Robbie Harwood <rharwood@redhat.com> Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This is GRUB 2, the second version of the GRand Unified Bootloader. GRUB 2 is rewritten from scratch to make GNU GRUB cleaner, safer, more robust, more powerful, and more portable. See the file NEWS for a description of recent changes to GRUB 2. See the file INSTALL for instructions on how to build and install the GRUB 2 data and program files. See the file MAINTAINERS for information about the GRUB maintainers, etc. If you found a security vulnerability in the GRUB please check the SECURITY file to get more information how to properly report this kind of bugs to the maintainers. Please visit the official web page of GRUB 2, for more information. The URL is <http://www.gnu.org/software/grub/grub.html>. More extensive documentation is available in the Info manual, accessible using 'info grub' after building and installing GRUB 2. There are a number of important user-visible differences from the first version of GRUB, now known as GRUB Legacy. For a summary, please see: info grub Introduction 'Changes from GRUB Legacy'