Avoid ld.so.1: gcc: fatal: libgcc_s.so.1: version 'GCC_4.2.0' not found (required by file /usr/gcc/4.9/bin/gcc)
--- gcc-3.4.3/gcc/f/Make-lang.in.~1~	2004-02-24 19:05:14.000000000 +0300
+++ gcc-3.4.3/gcc/f/Make-lang.in	2016-04-12 13:36:42.625865556 +0300
@@ -214,14 +214,14 @@
 
 f/intdoc$(build_exeext): $(INTDOC_DEPS) f/intdoc.h0 bconfig.h \
   $(SYSTEM_H) coretypes.h $(TM_H) $(BUILD_LIBDEPS)
-	$(CC_FOR_BUILD) $(BUILD_CFLAGS) $(BUILD_LDFLAGS) $(INCLUDES) $< \
+	/usr/bin/env -i $(CC_FOR_BUILD) $(BUILD_CFLAGS) $(BUILD_LDFLAGS) $(INCLUDES) $< \
 	  $(BUILD_LIBS) -o $@
 
 f/intdoc.h0: f/intdoc.in f/ansify$(build_exeext)
 	f/ansify$(build_exeext) $< < $< > $@
 
 f/ansify$(build_exeext): f/ansify.c bconfig.h $(SYSTEM_H) coretypes.h $(TM_H)
-	  $(CC_FOR_BUILD) $(BUILD_CFLAGS) $(BUILD_LDFLAGS) $(INCLUDES) $< \
+	  /usr/bin/env -i $(CC_FOR_BUILD) $(BUILD_CFLAGS) $(BUILD_LDFLAGS) $(INCLUDES) $< \
 	  -o $@
 
 f/BUGS: f/bugs0.texi f/bugs.texi f/root.texi