From: Jason Xu <bravejason@outlook.com>
Date: Sun, 3 Aug 2025 22:19:04 +0000 (-0400)
Subject: gcc: Make aarch64-mingw32 target install wrap stdint.h
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=577c0f4a402bfb99d9770e3a90556a3946cb0e18;p=thirdparty%2Fgcc.git

gcc: Make aarch64-mingw32 target install wrap stdint.h

Wrapped stdint.h for AArch64 MinGW32 is useful for bare-matal PE
target e.g. UEFI, as those platform does not provide a system
stdint.h, this would align with x86_64 mingw32 target which provides a
wrapped stdint.h

I have tested this by compiling a AArch64 UEFI Application using gcc's
stdint.h, with -ffreestanding flag, and execute the application with
AAVMF(edk2) inside QEMU.

gcc/ChangeLog:
	* config.gcc (aarch64-*-mingw*): Set use_gcc_stdint to wrap.
---

diff --git a/gcc/config.gcc b/gcc/config.gcc
index fa3ce390f70..eeecbd8463a 100644
--- a/gcc/config.gcc
+++ b/gcc/config.gcc
@@ -1316,6 +1316,7 @@ aarch64-*-mingw*)
 	    ;;
 	esac
 	default_use_cxa_atexit=yes
+	use_gcc_stdint=wrap
 	user_headers_inc_next_post="${user_headers_inc_next_post} float.h"
 	tm_defines="${tm_defines} TARGET_AARCH64_MS_ABI=1"
 	;;