Re: musl-gcc question

[idunham@lavabit.com]

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> On Thu, Sep 20, 2012 at 05:53:45PM -0400, idunham@lavabit.com wrote:
>> Rich, what would you think of changing from a hardcoded "gcc" to using
>> something along these lines:
>>
>> [ -z "$REALGCC" ] && REALGCC=gcc
>> $REALGCC <the current parameters>
>>
>> By setting REALGCC to rawgcc, Landley's toolchain could easily be used.
>> This would also help for using other cross-toolchains.
>> (note: I'm not particular about the variable, but $GCC might be a bad
>> choice: ISTR seeing one or two Makefiles that set that.)
>
> Have you tested if this works okay? If it's known to work, send a
> clean patch and I think it should be okay to apply.

That was off the top of my head, but it works.
Patch has been tested by building musl, then building my patched netbsd m4.
(I modified musl-gcc after installation to echo REALGCC).

Usage:
REALGCC=rawgcc make CC=musl-gcc

Isaac Dunham

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commit 01c16bf8f4e68c838994716e77bd254b86a989bc
Author: Isaac Dunham <idunham@lavabit.com>
Date:   Thu Sep 20 16:30:00 2012 -0700

    Allow REALGCC to set the compiler for musl-gcc to use

diff --git a/Makefile b/Makefile
index 10c174c..f62635d 100644
--- a/Makefile
+++ b/Makefile
@@ -112,7 +112,7 @@ lib/musl-gcc.specs: tools/musl-gcc.specs.sh config.mak
 	sh $< "$(includedir)" "$(libdir)" "$(LDSO_PATHNAME)" > $@
 
 tools/musl-gcc: config.mak
-	printf '#!/bin/sh\nexec gcc "$$@" -specs "%s/musl-gcc.specs"\n' "$(libdir)" > $@
+	printf '#!/bin/sh\n[ -z "$$REALGCC" ] && REALGCC=gcc\nexec $$REALGCC "$$@" -specs "%s/musl-gcc.specs"\n' "$(libdir)" > $@
 	chmod +x $@
 
 $(DESTDIR)$(bindir)/%: tools/%