Re: [Cegcc-devel] limits.h not found

[Pedro A. <pe...@co...>]

On Sunday 31 January 2010 15:23:05, Dave Korn wrote:
> 
> > in t-wince-pe (or some other make fragment) ?
> > 
> > I see that config/i386/t-mingw32 has:
> > 
> > NATIVE_SYSTEM_HEADER_DIR = /mingw/include
> 
>   Will that work in cross?

Yes.  Due to:

configure.ac:
 CROSS_SYSTEM_HEADER_DIR='$(TARGET_SYSTEM_ROOT)$${sysroot_headers_suffix}$(NATIVE_SYSTEM_HEADER_DIR)'

I also saw:
  config/spu/t-spu-elf:19:NATIVE_SYSTEM_HEADER_DIR = /include

There's no native spu-elf toolchain for sure, so this looks like
some precedent.

> or possibly just run the 
> install-headers stage of it and force it to install to
> $prefix/$target/sys-include.

Right, that should work too, though the --with-headers pseudo-ugly
option avoided needless copies of files in the end.

I'm not sure what is the best approach.  I've just built a toolchain
with the patches below.  A bunch of files showed up on include-fixed,
amonst which, there was a include-fixed/syslimits.h file.

Index: gcc/config/arm/t-wince-pe
===================================================================
--- gcc/config/arm/t-wince-pe   (revision 1439)
+++ gcc/config/arm/t-wince-pe   (working copy)
@@ -161,3 +161,5 @@ SHLIB_MKMAP = $(srcdir)/mkmap-flat.awk
 # does not get substituted before mkmap-flat.awk is run.
 SHLIB_MKMAP_OPTS = -v pe_dll=libgcc_s_$(EH_MODEL)-$(SHLIB_SOVERSION)$(SHLIB_EXT)
 SHLIB_MAPFILES = $(srcdir)/libgcc-std.ver
+
+NATIVE_SYSTEM_HEADER_DIR = /include



Index: build-mingw32ce.sh
===================================================================
--- build-mingw32ce.sh	(revision 1440)
+++ build-mingw32ce.sh	(working copy)
@@ -192,6 +194,7 @@ build_binutils()
 	--host=${HOST}          \
 	--target=${TARGET}      \
 	--disable-nls		\
+	--with-sysroot=${PREFIX}/${TARGET}/ \
 	--disable-werror
 
     make ${PARALLELISM}
@@ -221,6 +224,7 @@ build_bootstrap_gcc()
 	--disable-shared               \
 	--disable-interwork            \
 	--without-newlib               \
+	--without-headers              \
 	--enable-checking	|| exit 1
     
     case ${gcc_src} in
@@ -341,11 +345,11 @@ build_gcc()
             --disable-interwork            \
             --without-newlib               \
             --enable-checking              \
-            --with-headers			\
+            --with-sysroot=${PREFIX}/${TARGET}/ \
             --disable-__cxa_atexit
         ;;
     esac
-    
+
 
 # we build libstdc++ as dll, so we don't need this.    
 #  --enable-fully-dynamic-string  \
@@ -382,6 +386,7 @@ build_gdb()
 	--disable-win32-registry       \
 	--disable-multilib             \
 	--disable-interwork            \
+	--with-sysroot=${PREFIX}/${TARGET}/ \
 	--enable-checking
 
     export CFLAGS=${PREV_CFLAGS}