cdrtools-native: fix build with gcc-14

Fixes:
http://errors.yoctoproject.org/Errors/Details/770525/
| checking whether the C compiler (gcc  -isystem/OE/build/oe-core/tmp-glibc/work/x86_64-linux/cdrtools-native/3.01/recipe-sysroot-native/usr/include -O2 -pipe ) works... no
| configure: error: installation or configuration problem: C compiler cannot create executables.
| RULES/rules.cnf:70: incs/amd-ryzen-threadripper-3970x-32-core-processor-linux-cc/rules.cnf: No such file or directory
| make: *** [RULES/rules.cnf:59: incs/amd-ryzen-threadripper-3970x-32-core-processor-linux-cc/rules.cnf] Error 1
| make: *** Waiting for unfinished jobs....

where config.log show it's caused by gcc-14:

configure:1189: checking whether the C compiler (gcc  -isystem/OE/build/oe-core/tmp-glibc/work/x86_64-linux/cdrtools-native/3.01/recipe-sysroot-native/usr/include -O2 -pipe ) works
configure:1211: gcc  -o conftest -isystem/OE/build/oe-core/tmp-glibc/work/x86_64-linux/cdrtools-native/3.01/recipe-sysroot-native/usr/include -O2 -pipe  -D_GNU_SOURCE  conftest.c   1>&5
configure:1208:1: error: return type defaults to 'int' [-Wimplicit-int]
configure: failed program was:

main(){return(0);}

(From OE-Core rev: 094273bd7d1768e14fbdcd2f239bee14c630a625)

Signed-off-by: Martin Jansa <[email protected]>
Signed-off-by: Richard Purdie <[email protected]>

meta/recipes-devtools/cdrtools/cdrtools-native_3.01.bb

@@ -19,13 +19,17 @@ SRC_URI = " \
 SRC_URI[md5sum] = "7d45c5b7e1f78d85d1583b361aee6e8b"
 SRC_URI[sha256sum] = "ed282eb6276c4154ce6a0b5dee0bdb81940d0cbbfc7d03f769c4735ef5f5860f"
 
-EXTRA_OEMAKE = "-e MAKEFLAGS="
+EXTRA_OEMAKE = "-e MAKEFLAGS= CPPOPTX='${CPPFLAGS}' COPTX='${CFLAGS}' C++OPTX='${CXXFLAGS}' LDOPTX='${LDFLAGS}' GMAKE_NOWARN='true'"
 
 # Stop failures when 'cc' can't be found
 export ac_cv_prog_CC = "${CC}"
 
 inherit native
 
+# Use -std=gnu89 to build with gcc-14 (https://bugs.gentoo.org/903876)
+# this needs to be after native inherit (which sets CFLAGS to BUILD_CFLAGS)
+CFLAGS += "-std=gnu89"
+
 do_configure() {
         install -m 0755 ${STAGING_DATADIR_NATIVE}/gnu-config/config.sub ${S}/autoconf
         install -m 0755 ${STAGING_DATADIR_NATIVE}/gnu-config/config.guess ${S}/autoconf