From d00a96c846dc7bad686d174aa27ad7d66da149da Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Thu, 2 Dec 2021 21:35:45 +0100
Subject: Add support for bootstrapping with custom compiler, including check
 for c++20 support.

---
 bootstrap.sh | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

(limited to 'bootstrap.sh')

diff --git a/bootstrap.sh b/bootstrap.sh
index a5c11ac..510320a 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -1,7 +1,14 @@
 #!/bin/sh
 echo "Bootstrapping..."
-g++ -std=c++20 -Wall -O3 -Isrc -pthread src/bootstrap.cc ctor.cc test/ctor.cc -o ctor && \
-./ctor && \
-g++ -std=c++20 -Wall -O3 -Isrc -pthread ctor.cc test/ctor.cc -Lbuild -lctor -o ctor && \
+: ${CXX:=g++}
+$CXX -std=c++20 /dev/null -c -o /dev/null 2> /dev/null 1> /dev/null
+if [ $? != 0 ]
+then
+	echo "Set CXX to a compiler supporting c++20."
+	exit 1
+fi
+$CXX -std=c++20 -Wall -O3 -Isrc -pthread src/bootstrap.cc ctor.cc -o ctor && \
+CXX=`which $CXX` ./ctor && \
+$CXX -std=c++20 -Wall -O3 -Isrc -pthread ctor.cc test/ctor.cc -Lbuild -lctor -o ctor && \
 ./ctor configure --ctor-includedir=src --ctor-libdir=build && \
 echo "Done. Now run ./ctor to (re)build."
-- 
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