I’m 99% sure that this issue is down to the problem fixed in https://github.com/gcc-mirror/gcc/commit/6725f186cb70d48338f69456864bf469a12ee5be <https://github.com/gcc-mirror/gcc/commit/6725f186cb70d48338f69456864bf469a12ee5be> - which is included in GCC 12.2 - so I’ll go build 12.2.0 & try again > On 6 Nov 2022, at 19:27, Simon Wright via Gcc-help <gcc-help@xxxxxxxxxxx <mailto:gcc-help@xxxxxxxxxxx>> wrote: > > The boot compiler is GCC 12.1.0. > > Configuration fails because the C compiler can’t produce an executable. I don’t have the log, but the errors were like > > configure:3943: gcc -c -g conftest.c >&5 > <built-in>: error: unknown value '13.0.0' of '-mmacosx-version-min' > > I tried setting CFLAGS and CXXFLAGS as here: > > export CFLAGS=-mmacosx-version-min=12.0.0 > export CXXFLAGS=-mmacosx-version-min=12.0.0 > > $GCC_SRC/configure \ > --prefix=$PREFIX \ > --without-libiconv-prefix \ > --disable-libmudflap \ > --disable-libstdcxx-pch \ > --disable-libsanitizer \ > --disable-libcc1 \ > --disable-libcilkrts \ > --disable-multilib \ > --disable-nls \ > --enable-languages=c,c++,ada \ > --host=$BUILD \ > --target=$BUILD \ > --build=$BUILD \ > --without-isl \ > --with-build-sysroot="$(xcrun --show-sdk-path)" \ > --with-sysroot= \ > --with-specs="%{!sysroot=*:--sysroot=%:if-exists-else($XCODE $CLU)}" \ > --with-build-config=no \ > --enable-bootstrap \ > CFLAGS=-mmacosx-version-min=12.0.0 \ > CXXFLAGS=-mmacosx-version-min=12.0.0 > > (having checked that this flag was needed to avoid the error in a standard-alone compilation) but the configure now failed in fixincludes/. It seems that sometimes the CFLAGS setting is used and sometimes it isn’t??? See lines 3674, 3744, 3800, 3857, 3905 below and then 3943 > > configure:3652: checking whether the C compiler works > configure:3674: gcc -mmacosx-version-min=12.0.0 conftest.c >&5 > configure:3678: $? = 0 > configure:3726: result: yes > configure:3729: checking for C compiler default output file name > configure:3731: result: a.out > configure:3737: checking for suffix of executables > configure:3744: gcc -o conftest -mmacosx-version-min=12.0.0 conftest.c >&5 > configure:3748: $? = 0 > configure:3770: result: > configure:3792: checking whether we are cross compiling > configure:3800: gcc -o conftest -mmacosx-version-min=12.0.0 conftest.c >&5 > configure:3804: $? = 0 > configure:3811: ./conftest > configure:3815: $? = 0 > configure:3830: result: no > configure:3835: checking for suffix of object files > configure:3857: gcc -c -mmacosx-version-min=12.0.0 conftest.c >&5 > configure:3861: $? = 0 > configure:3882: result: o > configure:3886: checking whether we are using the GNU C compiler > configure:3905: gcc -c -mmacosx-version-min=12.0.0 conftest.c >&5 > configure:3905: $? = 0 > configure:3914: result: yes > configure:3923: checking whether gcc accepts -g > configure:3943: gcc -c -g conftest.c >&5 > <built-in>: error: unknown value '13.0.0' of '-mmacosx-version-min' > configure:3943: $? = 1 > configure: failed program was: > | /* confdefs.h */ > | #define PACKAGE_NAME "fixincludes" > | #define PACKAGE_TARNAME "fixincludes" > | #define PACKAGE_VERSION " " > | #define PACKAGE_STRING "fixincludes " > | #define PACKAGE_BUGREPORT "" > | #define PACKAGE_URL "" > | /* end confdefs.h. */ > | > | int > | main () > | { > | > | ; > | return 0; > | } > >
