From 1c0d6e4e054f1c5ac461e6da3a63c5f7acaa0a28 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Du=C5=A1an=20Poizl?= <nou.spiro@gmail.com>
Date: Wed, 17 May 2023 16:40:46 +0200
Subject: [PATCH] Add generation of pkgconfig file

---
 CMakeLists.txt | 11 ++++++++++-
 libxisf.pc.in  | 13 +++++++++++++
 2 files changed, 23 insertions(+), 1 deletion(-)
 create mode 100644 libxisf.pc.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a5c15aa..1102ec1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,6 +1,8 @@
 cmake_minimum_required(VERSION 3.14)
 
-project(libXISF VERSION 0.2.3 LANGUAGES CXX C)
+project(libXISF VERSION 0.2.3 LANGUAGES CXX C
+    HOMEPAGE_URL https://gitea.nouspiro.space/nou/libXISF
+    DESCRIPTION "LibXISF is C++ library that can read and write XISF files produced by PixInsight.")
 
 include(CMakeDependentOption)
 
@@ -73,15 +75,19 @@ if(USE_BUNDLED_LIBS)
     target_include_directories(XISF PRIVATE ${THIRD_PARTY_INCLUDE})
     if(NOT USE_BUNDLED_LZ4)
         target_link_libraries(XISF PUBLIC PkgConfig::LZ4)
+        list(APPEND PC_LIBS_REQUIRE lz4)
     endif(NOT USE_BUNDLED_LZ4)
     if(NOT USE_BUNDLED_PUGIXML)
         target_link_libraries(XISF PUBLIC PkgConfig::PUGIXML)
+        list(APPEND PC_LIBS_REQUIRE pugixml)
     endif(NOT USE_BUNDLED_PUGIXML)
     if(NOT USE_BUNDLED_ZLIB)
         target_link_libraries(XISF PUBLIC PkgConfig::ZLIB)
+        list(APPEND PC_LIBS_REQUIRE zlib)
     endif(NOT USE_BUNDLED_ZLIB)
 else(USE_BUNDLED_LIBS)
     target_link_libraries(XISF PUBLIC PkgConfig::LZ4 PkgConfig::PUGIXML PkgConfig::ZLIB)
+    list(APPEND PC_LIBS_REQUIRE lz4 pugixml zlib)
 endif(USE_BUNDLED_LIBS)
 
 set_target_properties(XISF PROPERTIES VERSION ${PROJECT_VERSION} SOVERSION ${PROJECT_VERSION_MAJOR})
@@ -97,8 +103,11 @@ set(XISF_PUBLIC_HEADERS libxisf.h libXISF_global.h)
 include(GNUInstallDirs)
 
 install(FILES ${XISF_PUBLIC_HEADERS} DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
+install(FILES ${CMAKE_CURRENT_BINARY_DIR}/libxisf.pc DESTINATION ${CMAKE_INSTALL_LIBDIR}/pkgconfig)
 install(TARGETS XISF LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR})
 
+configure_file(libxisf.pc.in libxisf.pc @ONLY)
+
 #testing
 
 enable_testing()
diff --git a/libxisf.pc.in b/libxisf.pc.in
new file mode 100644
index 0000000..b0b8b53
--- /dev/null
+++ b/libxisf.pc.in
@@ -0,0 +1,13 @@
+prefix="@CMAKE_INSTALL_PREFIX@"
+exec_prefix="${prefix}"
+libdir="${exec_prefix}/@CMAKE_INSTALL_LIBDIR@"
+includedir="${prefix}/@CMAKE_INSTALL_INCLUDEDIR@"
+
+Name: @PROJECT_NAME@
+Description: @CMAKE_PROJECT_DESCRIPTION@
+URL: @CMAKE_PROJECT_HOMEPAGE_URL@
+Version: @PROJECT_VERSION@
+Requires.private: @PC_LIBS_REQUIRE@
+Cflags: -I"${includedir}"
+Libs: -L"${libdir}" -lXISF
+Libs.private: -L"${libdir}" @PC_LIBS_REQUIRE@