Always disable GMP for CRuby headers

Author: eregon

lib/cext/include/truffleruby/config_darwin_amd64.h

@@ -76,8 +76,6 @@
 #if defined(__x86_64__)
 #define HAVE_X86INTRIN_H 1
 #endif
-#define HAVE_GMP_H 1
-#define HAVE_LIBGMP 1
 #define HAVE_TYPEOF 1
 #define restrict __restrict__
 #define HAVE_LONG_LONG 1

tool/generate-config-header.sh

@@ -33,6 +33,7 @@ if [ ! -d "ruby-$VERSION" ]; then
 fi
 
 cd "ruby-$VERSION" || exit 1
-./configure || (cat config.log; exit 1)
+# Disable GMP as it might not be available on the runtime machine and we do not use it
+./configure --without-gmp || (cat config.log; exit 1)
 
 cp .ext/include/*/ruby/config.h "../lib/cext/include/truffleruby/config_${mx_platform}.h"