>From 1acf64c77a0eb29e1c0e5a8af1013578b70901c6 Mon Sep 17 00:00:00 2001
From: Raghav Gururajan <rg@raghavgururajan.name>
Date: Wed, 6 Jan 2021 04:39:04 -0500
Subject: [PATCH 13/20] gnu: libtgvoip: Add support for pkg-config.

* gnu/packages/telephony.scm (libtgvoip) [patches]: Add libtgvoip-pkgconfig.patch.
[native-inputs]: Add pkg-config.
* gnu/packages/patches/libtgvoip-pkgconfig.patch: New file.
* gnu/local.mk (dist_patch_DATA): Add it.
---
 gnu/local.mk                                  |  1 +
 .../patches/libtgvoip-pkgconfig.patch         | 61 +++++++++++++++++++
 gnu/packages/telephony.scm                    |  5 +-
 3 files changed, 66 insertions(+), 1 deletion(-)
 create mode 100644 gnu/packages/patches/libtgvoip-pkgconfig.patch

diff --git a/gnu/local.mk b/gnu/local.mk
index 82d254db19..e2e694a833 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -1291,6 +1291,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/libtar-CVE-2013-4420.patch 		\
   %D%/packages/patches/libtgvoip-disable-sse2.patch 		\
   %D%/packages/patches/libtgvoip-disable-webrtc.patch 		\
+  %D%/packages/patches/libtgvoip-pkgconfig.patch             \
   %D%/packages/patches/libtheora-config-guess.patch		\
   %D%/packages/patches/libtirpc-hurd.patch			\
   %D%/packages/patches/libtirpc-hurd-client.patch		\
diff --git a/gnu/packages/patches/libtgvoip-pkgconfig.patch b/gnu/packages/patches/libtgvoip-pkgconfig.patch
new file mode 100644
index 0000000000..23794e8d77
--- /dev/null
+++ b/gnu/packages/patches/libtgvoip-pkgconfig.patch
@@ -0,0 +1,61 @@
+From 4ce5e22ed2dc24e9211c4874c1dd6b05faad2a87 Mon Sep 17 00:00:00 2001
+From: Ilya Fedin <fedin-ilja2010@ya.ru>
+Date: Sun, 5 Jan 2020 12:25:31 +0400
+Subject: [PATCH] Add support for pkg-config
+
+---
+ Makefile.am  |  2 ++
+ configure.ac |  4 +++-
+ tgvoip.pc.in | 10 ++++++++++
+ 3 files changed, 15 insertions(+), 1 deletion(-)
+ create mode 100644 tgvoip.pc.in
+
+diff --git a/Makefile.am b/Makefile.am
+index 03c8866..a9c9715 100644
+--- a/Makefile.am
++++ b/Makefile.am
+@@ -755,6 +755,8 @@ libtgvoip_la_SOURCES = $(SRC) $(TGVOIP_HDRS)
+ tgvoipincludedir = $(includedir)/tgvoip
+ nobase_tgvoipinclude_HEADERS = $(TGVOIP_HDRS)
+ 
++pkgconfig_DATA = tgvoip.pc
++
+ CXXFLAGS += -std=gnu++0x $(CFLAGS)
+ if TARGET_OS_OSX
+ OBJCFLAGS = $(CFLAGS)
+diff --git a/configure.ac b/configure.ac
+index 222f541..e2df927 100644
+--- a/configure.ac
++++ b/configure.ac
+@@ -9,6 +9,8 @@ AM_INIT_AUTOMAKE([subdir-objects])
+ AM_SILENT_RULES([yes])
+ LT_INIT
+ 
++PKG_INSTALLDIR
++
+ # Checks for programs.
+ AC_PROG_CXX
+ AC_PROG_CC
+@@ -109,5 +111,5 @@ AC_FUNC_MALLOC
+ AC_FUNC_REALLOC
+ AC_CHECK_FUNCS([clock_gettime floor gettimeofday inet_ntoa memmove memset select socket sqrt strcasecmp strchr strerror strncasecmp strstr strtol strtoul uname])
+ 
+-AC_CONFIG_FILES([Makefile])
++AC_CONFIG_FILES([Makefile tgvoip.pc])
+ AC_OUTPUT
+diff --git a/tgvoip.pc.in b/tgvoip.pc.in
+new file mode 100644
+index 0000000..1ca7758
+--- /dev/null
++++ b/tgvoip.pc.in
+@@ -0,0 +1,10 @@
++prefix=@prefix@
++exec_prefix=@exec_prefix@
++libdir=@libdir@
++includedir=@includedir@
++
++Name: tgvoip
++Description: VoIP library for Telegram clients
++Version: 2.4.4
++Libs: -L${libdir} -ltgvoip
++Cflags: -I${includedir}/tgvoip
diff --git a/gnu/packages/telephony.scm b/gnu/packages/telephony.scm
index 48e30abfc3..05538762c3 100644
--- a/gnu/packages/telephony.scm
+++ b/gnu/packages/telephony.scm
@@ -879,11 +879,14 @@ Initiation Protocol (SIP) and a multimedia framework.")
        ;; The patch for WebRTC /must/ precede the patch for SSE2.
        (patches
         (search-patches "libtgvoip-disable-webrtc.patch"
-                        "libtgvoip-disable-sse2.patch"))
+                        "libtgvoip-disable-sse2.patch"
+                        "libtgvoip-pkgconfig.patch"))
        (sha256
         (base32
          "122kn3jx6v0kkldlzlpzvlwqxgp6pmzxsjhrhcxw12bx9c08sar5"))))
     (build-system gnu-build-system)
+    (native-inputs
+     `(("pkg-config" ,pkg-config)))
     (inputs
      `(("alsa-lib" ,alsa-lib)
        ("libopusenc" ,libopusenc)
-- 
2.29.2