diff options
Diffstat (limited to 'src/cmd/cgo/doc.go')
| -rw-r--r-- | src/cmd/cgo/doc.go | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/cmd/cgo/doc.go b/src/cmd/cgo/doc.go index c4868345c..b3aa9aded 100644 --- a/src/cmd/cgo/doc.go +++ b/src/cmd/cgo/doc.go @@ -25,9 +25,12 @@ the package. For example: CFLAGS and LDFLAGS may be defined with pseudo #cgo directives within these comments to tweak the behavior of gcc. Values defined -in multiple directives are concatenated together. For example: +in multiple directives are concatenated together. Options prefixed +by $GOOS, $GOARCH, or $GOOS/$GOARCH are only defined in matching +systems. For example: // #cgo CFLAGS: -DPNG_DEBUG=1 + // #cgo linux CFLAGS: -DLINUX=1 // #cgo LDFLAGS: -lpng // #include <png.h> import "C" |