From 389d55fadf8ed166cc06c016d9eae3dda5e249b8 Mon Sep 17 00:00:00 2001
From: Russ Cox <rsc@golang.org>
Date: Tue, 18 Oct 2011 14:55:10 -0400
Subject: [PATCH] build: pass $GCFLAGS to compiler

For example, if you are debugging an optimization
problem you can now run

        GCFLAGS=-N gotest

This is a convention for make, not for the general build,
so it may go away or be done differently in the eventual
'go' command.

The plan is that people will be able to test their code for
rune safety by doing GCFLAGS=-r.

R=golang-dev, bradfitz, lvd
CC=golang-dev
https://golang.org/cl/5294042
---
 src/Make.cmd | 4 ++--
 src/Make.pkg | 4 ++--
 test/run     | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/Make.cmd b/src/Make.cmd
index 27c6a2e1346..d663edbffcf 100644
--- a/src/Make.cmd
+++ b/src/Make.cmd
@@ -20,7 +20,7 @@ $(TARG): _go_.$O
 	$(LD) $(LDIMPORTS) -o $@ _go_.$O
 
 _go_.$O: $(GOFILES) $(PREREQ)
-	$(GC) $(GCIMPORTS) -o $@ $(GOFILES)
+	$(GC) $(GCFLAGS) $(GCIMPORTS) -o $@ $(GOFILES)
 
 install: $(TARGDIR)/$(TARG)
 
@@ -44,7 +44,7 @@ _test/main.a: _gotest_.$O
 	gopack grc $@ _gotest_.$O
 
 _gotest_.$O: $(GOFILES) $(GOTESTFILES)
-	$(GC) $(GCIMPORTS) -o $@ $(GOFILES) $(GOTESTFILES)
+	$(GC) $(GCFLAGS) $(GCIMPORTS) -o $@ $(GOFILES) $(GOTESTFILES)
 
 importpath:
 	echo main
diff --git a/src/Make.pkg b/src/Make.pkg
index ad7d10bebfb..6d0ba987f9c 100644
--- a/src/Make.pkg
+++ b/src/Make.pkg
@@ -83,10 +83,10 @@ $(TARGDIR)/$(TARG).a: _obj/$(TARG).a
 	cp _obj/$(TARG).a "$@"
 
 _go_.$O: $(GOFILES) $(PREREQ)
-	$(GC) $(GCIMPORTS) -p $(TARG) -o $@ $(GOFILES)
+	$(GC) $(GCFLAGS) $(GCIMPORTS) -p $(TARG) -o $@ $(GOFILES)
 
 _gotest_.$O: $(GOFILES) $(GOTESTFILES) $(PREREQ)
-	$(GC) $(GCIMPORTS) -p $(TARG) -o $@ $(GOFILES) $(GOTESTFILES)
+	$(GC) $(GCFLAGS) $(GCIMPORTS) -p $(TARG) -o $@ $(GOFILES) $(GOTESTFILES)
 
 _obj/$(TARG).a: _go_.$O $(OFILES)
 	@mkdir -p _obj/$(dir)
diff --git a/test/run b/test/run
index 533b0d824b7..03c91ee30ee 100755
--- a/test/run
+++ b/test/run
@@ -23,7 +23,7 @@ Xarm)
 	exit 1
 esac
 
-export G=${A}g
+export G="${A}g ${GCFLAGS}"
 export L=${A}l
 export GOTRACEBACK=0
 export LANG=C