wmperry(a)aventail.com (William M. Perry) writes: I made it into real patch. PROBLEMS file is not exactly clear about what version is OK and what version is not. Does egcs 1.0 means from egcs-1.0 to egcs-1.0.3a? Also, I don't have access to systems other than Solaris 2.6 (sparc), Debian GNU/Linux potato (i686) and RedHat Linux 5.2 (sparc), so I cannot test on other platforms. egcs test is not tested yet because I don't have egcs here. Could someone please test this patch before I send it to xemacs-patches? You need to run autoconf after applying this patch. Thanks. Index: configure.in =================================================================== RCS file: /usr/CVSroot/XEmacs/xemacs/configure.in,v retrieving revision 1.111.2.51 diff -u -r1.111.2.51 configure.in --- configure.in 1999/11/28 18:15:39 1.111.2.51 +++ configure.in 1999/12/03 11:36:10 ＠＠ -1809,6 +1809,64 ＠＠ fi fi +dnl Search for GCC specific build problems we know about +if test "$GCC" = "yes"; then +GCC_VERSION=`gcc --version` +case `uname -s`:`uname -m`:$GCC_VERSION in + dnl egcs 2.90.21 (egcs-1.00 release) + dnl egcs 2.90.29 (egcs-1.0.3 release) + *:sun4*:2.8.1|*:sun4*:egcs-2.90.*) + dnl Don't use -O2 with gcc 2.8.1 and egcs 1.0 under SPARC architectures + dnl without also using `-fno-schedule-insns'. + case "$CFLAGS" in + *-O2*) + case "$CFLAGS" in + *-fno-schedule-insns*) ;; + *) + AC_MSG_WARN(Don't use -O2 with gcc 2.8.1 and egcs 1.0 under SPARC architectures) + AC_MSG_WARN(without also using -fno-schedule-insns.) + AC_MSG_ERROR(Aborting due to known problem) + ;; + esac + ;; + esac + ;; + dnl egcs-2.91.57 (egcs-1.1 release) + dnl egcs-2.91.66 (egcs-1.1.2 release) + Linux:alpha:egcs-2.91.*) + AC_MSG_WARN(There have been reports of egcs-1.1 not compiling XEmacs correctly on) + AC_MSG_WARN(Alpha Linux. There have also been reports that egcs-1.0.3a is O.K.) + AC_MSG_ERROR(Aborting due to known problem) + ;; + *:i*86*:2.7.2*) + case "$GCC_VERSION" in + 2.7.2) + case "$CFLAGS" in + *-O2*) + case "$CFLAGS" in + *-fno-strength-reduce*) ;; + *) + AC_MSG_WARN(Don't use -O2 with gcc 2.7.2 under Intel/XXX without also using) + AC_MSG_WARN(-fno-strength-reduce.) + AC_MSG_ERROR(Aborting due to known problem) + ;; + esac + ;; + esac + ;; + esac + case "$CFLAGS" in + *-fno-caller-saves*) ;; + *) + AC_MSG_WARN(Don't use -O2 with gcc 2.7.2 under Intel/XXX without also using) + AC_MSG_WARN(-fno-caller-saves.) + AC_MSG_ERROR(Aborting due to known problem) + ;; + esac + ;; +esac +fi + dnl Inform compiler that certain flags are meant for the linker dnl XE_PROTECT_LINKER_FLAGS(shell_var) define([XE_PROTECT_LINKER_FLAGS], [ -- Yoshiki Hayashi