From 92008e06620906118e7a03b85473bdeaffe98672 Mon Sep 17 00:00:00 2001
From: midipix <writeonce@midipix.org>
Date: Mon, 31 May 2021 09:19:57 +0000
Subject: build system: configure: config_host(): added freestanding
environment support.
---
configure | 18 ++++++++++++++++--
1 file changed, 16 insertions(+), 2 deletions(-)
(limited to 'configure')
diff --git a/configure b/configure
index 725cd6f..f770ae1 100755
--- a/configure
+++ b/configure
@@ -859,8 +859,22 @@ config_host()
mb_cfghost_cflags="${mb_cfghost_cflags#*: }"
- printf 'int main(void){return 0;}' \
- > "$mb_cfghost_tmpname"
+ if [ $mb_cc_environment = 'freestanding' ]; then
+ if [ -z "mb_cc_underscore" ]; then
+ mb_cfghost_start_fn='_start'
+ else
+ mb_cfghost_start_fn='start'
+ fi
+
+ printf 'int %s(void){return 0;}' "$mb_cfghost_start_fn" \
+ > "$mb_cfghost_tmpname"
+
+ mb_cfghost_cflags="$mb_cfghost_cflags -ffreestanding"
+ mb_cfghost_cflags="$mb_cfghost_cflags -nostdlib"
+ else
+ printf 'int main(void){return 0;}' \
+ > "$mb_cfghost_tmpname"
+ fi
# log
printf '\n' >&3
--
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