It was discovered that running "make clean" from a port with a dependency

on gcc31 or gcc32 (either with a BUILD_DEPENDS or via USE_GCC) with that
version of gcc already installed causes infinite recursion problems.

The issue stems from gcc31 and gcc32 using USE_GCC internally. Internally,
it was used to override any other definition and say that you can use any
gcc version to build gcc31/gcc32. But that USE_GCC redefinition was causing
recursion errors, so handle the problem instead by just simply undefining
USE_GCC inside the gcc port Makefile itself.

This should make things happy again.

1 files changed, 5 insertions, 2 deletions

diff --git a/lang/gcc31/Makefile b/lang/gcc31/Makefile
index 868edb3bcdac..8d651ce6b46b 100644
--- a/lang/gcc31/Makefile
+++ b/lang/gcc31/Makefile
@@ -42,8 +42,11 @@ CONFIGURE_SCRIPT=	../${SRCDIR:C/${WRKDIR}//}/configure
 .error You have `USE_GCC' variable defined either in environment or in make(1) arguments. Please undefine and try again.
 .endif
 
-# do not require Gcc 3.1 to compile -- or we have an infinate loop on RELENG_4.
-USE_GCC=	2.7+
+# Do not let USE_GCC be set here. We can't hardcode that gcc31 should require
+# gcc31 in order to build. Setting USE_GCC at all here causes recursion errors
+# when it clobbers the USE_GCC defined by other ports.
+.undef USE_GCC
+
 NOMANCOMPRESS=	yes	# to hard to deal with differences on 5-cur and releng4
 
 .include <bsd.port.pre.mk>