From cb1bfbad95be184a8c70acd839917ba190c831ca Mon Sep 17 00:00:00 2001
From: James Laird <jhl@mafipulation.org>
Date: Tue, 2 Apr 2013 00:16:03 +1100
Subject: [PATCH] Makefile: configure for libraries properly

---
 .gitignore |  3 ++-
 Makefile   | 20 +++++++++++++++++---
 config.h   |  1 -
 configure  | 33 +++++++++++++++++++++++++++++++++
 4 files changed, 52 insertions(+), 5 deletions(-)
 delete mode 100644 config.h
 create mode 100755 configure

diff --git a/.gitignore b/.gitignore
index a1bfbbe6..b06fcb01 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,4 @@
-hairtunes
 shairport
 *.o
+config.mk
+config.h
diff --git a/Makefile b/Makefile
index 629c705b..bb007670 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,20 @@
-SRCS := shairport.c rtsp.c mdns.c audio.c common.c rtp.c player.c alac.c $(wildcard audio_*.c)
+ifeq ($(wildcard config.mk),)
+$(warning config.mk does not exist, configuring.)
+config.mk:
+	sh ./configure
+	$(MAKE) shairport
+endif
 
-LIBS := -lcrypto -lm -lao -lpthread
+-include config.mk
+
+SRCS := shairport.c rtsp.c mdns.c common.c rtp.c player.c alac.c audio.c audio_dummy.c
+
+ifdef CONFIG_AO
+SRCS += audio_ao.c
+endif
 
 shairport: $(SRCS)
-	gcc -ggdb -Wall -Wno-unused-value $(SRCS) $(LIBS) -o shairport
+	$(CC) $(CFLAGS) $(SRCS) $(LDFLAGS) -o shairport
+
+clean:
+	rm shairport
diff --git a/config.h b/config.h
deleted file mode 100644
index 111a93db..00000000
--- a/config.h
+++ /dev/null
@@ -1 +0,0 @@
-#define CONFIG_AO
diff --git a/configure b/configure
new file mode 100755
index 00000000..40304137
--- /dev/null
+++ b/configure
@@ -0,0 +1,33 @@
+#!/bin/sh
+
+echo Configuring Shairport
+
+rm -f config.mk config.h
+
+LDFLAGS+=" -lm -lpthread"
+
+if pkg-config openssl 2>/dev/null; then
+    CFLAGS+=" `pkg-config --cflags openssl`"
+    LDFLAGS+=" `pkg-config --libs openssl`"
+else
+    echo Guessing OpenSSL linker flags
+    LDFLAGS+=" -lssl -lcrypto"
+fi
+
+if pkg-config ao 2>/dev/null; then
+    CFLAGS+=" `pkg-config --cflags ao`"
+    LDFLAGS+=" `pkg-config --libs ao`"
+    echo "#define CONFIG_AO" >> config.h
+    echo "CONFIG_AO=yes" >> config.mk
+    echo libao found
+else
+    echo libao not found
+fi
+
+echo "CFLAGS+=${CFLAGS}" >> config.mk
+echo "LDFLAGS+=${LDFLAGS}" >> config.mk
+
+echo CFLAGS: ${CFLAGS}
+echo LDFLAGS: ${LDFLAGS}
+
+echo Configure done