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# T2 SDE: package/.../dietlibc/sane-defaults.patch
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For certain architectures we need to mangle the opts to get working binaries.
This is for example the case on mips, where we need -mnoabi-calls if we
do not want get segfaults ... Alternatively instead of injecting the generic
-Os battery of options we could define fine-grained injections in our build
system but I find working with up-stream people and those defaults might be
the better choice.

  - Rene Rebe <rene@exactcode.de>

--- dietlibc-0.29/diet.c	2005-05-18 14:38:55.000000000 +0000
+++ dietlibc-0.29-improved/diet.c	2005-11-27 15:11:24.000000000 +0000
@@ -33,8 +33,8 @@
   "sparc64","-Os","-m64","-mhard-quad-float",0,
   "alpha","-Os","-fomit-frame-pointer",0,
   "arm","-Os","-fomit-frame-pointer",0,
-  "mips","-Os","-fomit-frame-pointer","-mno-abicalls","-fno-pic","-G","0",0,
-  "mipsel","-Os","-fomit-frame-pointer","-mno-abicalls","-fno-pic","-G","0",0,
+  "mips","-Os","-fomit-frame-pointer","-G","0",0,
+  "mipsel","-Os","-fomit-frame-pointer","-G","0",0,
   "ppc","-Os","-fomit-frame-pointer","-mpowerpc-gpopt","-mpowerpc-gfxopt",0,
   "ppc64","-Os","-fomit-frame-pointer","-mpowerpc-gpopt","-mpowerpc-gfxopt",0,
   "s390","-Os","-fomit-frame-pointer",0,
@@ -44,6 +44,13 @@
   "x86_64","-Os","-fstrict-aliasing","-momit-leaf-frame-pointer","-mfancy-math-387",0,
   0};
 
+static const char* Opts[] = {
+  "mips", "-mno-abicalls","-fno-pic",0,
+  "mipsel", "-mno-abicalls","-fno-pic",0,
+  "sparc64", "-m64","-mhard-quad-float",0,
+  0
+};
+
 static void usage(void) {
   __write2(
 #ifdef __DYN_LIB
@@ -77,6 +83,7 @@
 #endif
   const char *nostdlib="-nostdlib";
   const char *libgcc="-lgcc";
+  const char **o;
   char dashL[1000];
   char dashstatic[]="-static";
   int i;
@@ -333,8 +340,21 @@
       }
 #endif
       *dest++="-D__dietlibc__";
+      /* strictly needed opts */
+      for (o=Opts;*o;++o) {
+        if (!strcmp(*o,shortplatform)) {
+          ++o;
+          while (*o) {
+            *dest++=(char*)*o;
+            ++o;
+          }
+          break;
+        } else
+          while (*o) ++o;
+      }
+
       if (mangleopts) {
-	const char **o=Os;
+	o=Os;
 
 	{
 	  int fd;
--- dietlibc-0.30/sparc64/Makefile.add	2004-03-25 21:11:00.000000000 +0000
+++ dietlibc-0.30-patch/sparc64/Makefile.add	2006-07-31 10:12:05.000000000 +0000
@@ -1,3 +1,3 @@
-CFLAGS+=-m64 -Os
+CFLAGS+=-m64 -Os -mhard-quad-float
 VPATH:=sparc64:syscalls.s:$(VPATH)
 LIBOBJ+=$(patsubst %,$(OBJDIR)/%,__time.o)