From 6af2686a52e0e2272f8167cc170e9c572157e7b3 Mon Sep 17 00:00:00 2001
From: rofl0r <rofl0r@users.noreply.github.com>
Date: Fri, 30 Apr 2021 16:15:30 +0100
Subject: [PATCH] configure: check for -pthread vs -lpthread (#379)

---
 Makefile  | 2 +-
 configure | 9 +++++++++
 2 files changed, 10 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index d124ac9..7f3f4fa 100644
--- a/Makefile
+++ b/Makefile
@@ -30,7 +30,7 @@ GENH = src/version.h
 CFLAGS  += -Wall -O0 -g -std=c99 -D_GNU_SOURCE -pipe
 NO_AS_NEEDED = -Wl,--no-as-needed
 LIBDL   = -ldl
-LDFLAGS = -fPIC $(NO_AS_NEEDED) $(LIBDL) -lpthread
+LDFLAGS = -fPIC $(NO_AS_NEEDED) $(LIBDL) $(PTHREAD)
 INC     = 
 PIC     = -fPIC
 AR      = $(CROSS_COMPILE)ar
diff --git a/configure b/configure
index 7157484..1e9ca3f 100755
--- a/configure
+++ b/configure
@@ -208,6 +208,15 @@ fi
 echo "$LD_SONAME_FLAG"
 echo "LD_SET_SONAME = -Wl,$LD_SONAME_FLAG," >> config.mak
 
+if check_link "checking whether we can use -lpthread" "-lpthread" \
+"int main(){return 0;}" ; then
+echo "PTHREAD = -lpthread" >> config.mak
+else
+check_link "checking whether we can use -pthread" "-pthread" \
+"int main(){return 0;}" || fail "no pthread support detected"
+echo "PTHREAD = -pthread" >> config.mak
+fi
+
 make_cmd=make
 if ismac ; then
 	echo LDSO_SUFFIX=dylib>>config.mak