scons: don't compile some files with -gstabs if using mingw32
Compiling some (large) files with i686-pc-mingw32-gcc 4.2.2 (at least)
and the -gstabs option triggers a compiler error. Use this work-around
to simply compile the effected files without -gstabs.
diff --git a/scons/crossmingw.py b/scons/crossmingw.py
index cc04622..4a695a4 100644
--- a/scons/crossmingw.py
+++ b/scons/crossmingw.py
@@ -128,6 +128,42 @@
source_scanner=SCons.Tool.SourceFileScanner)
SCons.Tool.SourceFileScanner.add_scanner('.rc', SCons.Defaults.CScan)
+
+
+def compile_without_gstabs(env, sources, c_file):
+ '''This is a hack used to compile some source files without the
+ -gstabs option.
+
+ It seems that some versions of mingw32's gcc (4.4.2 at least) die
+ when compiling large files with the -gstabs option. -gstabs is
+ related to debug symbols and can be omitted from the effected
+ files.
+
+ This function compiles the given c_file without -gstabs, removes
+ the c_file from the sources list, then appends the new .o file to
+ sources. Then return the new sources list.
+ '''
+
+ # Modify CCFLAGS to not have -gstabs option:
+ env2 = env.Clone()
+ flags = str(env2['CCFLAGS'])
+ flags = flags.replace("-gstabs", "")
+ env2['CCFLAGS'] = SCons.Util.CLVar(flags)
+
+ # Build the special-case files:
+ obj_file = env2.SharedObject(c_file)
+
+ # Replace ".cpp" or ".c" with ".o"
+ o_file = c_file.replace(".cpp", ".o")
+ o_file = o_file.replace(".c", ".o")
+
+ # Replace the .c files with the specially-compiled .o file
+ sources.remove(c_file)
+ sources.append(o_file)
+
+ return sources
+
+
def generate(env):
mingw_prefix = find(env)
@@ -197,5 +233,7 @@
# Avoid depending on gcc runtime DLLs
env.AppendUnique(LINKFLAGS = ['-static-libgcc'])
+ env.AddMethod(compile_without_gstabs, 'compile_without_gstabs')
+
def exists(env):
return find(env)