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Diffstat (limited to 'libgo/go/cmd/cgo/doc.go')
| -rw-r--r-- | libgo/go/cmd/cgo/doc.go | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/libgo/go/cmd/cgo/doc.go b/libgo/go/cmd/cgo/doc.go index ca18c45..e782c86 100644 --- a/libgo/go/cmd/cgo/doc.go +++ b/libgo/go/cmd/cgo/doc.go @@ -112,6 +112,13 @@ The default C and C++ compilers may be changed by the CC and CXX environment variables, respectively; those environment variables may include command line options. +The cgo tool will always invoke the C compiler with the source file's +directory in the include path; i.e. -I${SRCDIR} is always implied. This +means that if a header file foo/bar.h exists both in the source +directory and also in the system include directory (or some other place +specified by a -I flag), then "#include <foo/bar.h>" will always find the +local version in preference to any other version. + The cgo tool is enabled by default for native builds on systems where it is expected to work. It is disabled by default when cross-compiling. You can control this by setting the CGO_ENABLED @@ -714,7 +721,7 @@ linkage to the desired libraries. The main function is provided by _cgo_main.c: int main() { return 0; } - void crosscall2(void(*fn)(void*, int, uintptr_t), void *a, int c, uintptr_t ctxt) { } + void crosscall2(void(*fn)(void*), void *a, int c, uintptr_t ctxt) { } uintptr_t _cgo_wait_runtime_init_done(void) { return 0; } void _cgo_release_context(uintptr_t ctxt) { } char* _cgo_topofstack(void) { return (char*)0; } |