From 0560a3a63dfdd6642724c8fad4db9dc58629f6bf Mon Sep 17 00:00:00 2001
From: Leander Schulten <Leander.Schulten@rwth-aachen.de>
Date: Fri, 3 Nov 2023 23:31:11 +0100
Subject: [PATCH] pkgconfig file: propagate WITH_GZFILEOP

---
 CMakeLists.txt  | 3 +++
 zlib.pc.cmakein | 2 +-
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a645ad6e7c..fbc2bdbafb 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1159,6 +1159,9 @@ else()
 endif()
 
 set(ZLIB_PC ${CMAKE_CURRENT_BINARY_DIR}/zlib${SUFFIX}.pc)
+if(WITH_GZFILEOP)
+    set(PKG_CONFIG_CFLAGS "-DWITH_GZFILEOP")
+endif()
 configure_file(${CMAKE_CURRENT_SOURCE_DIR}/zlib.pc.cmakein
     ${ZLIB_PC} @ONLY)
 configure_file(${CMAKE_CURRENT_BINARY_DIR}/zconf${SUFFIX}.h.cmakein
diff --git a/zlib.pc.cmakein b/zlib.pc.cmakein
index 3d440ce6bd..df8bf9f051 100644
--- a/zlib.pc.cmakein
+++ b/zlib.pc.cmakein
@@ -11,4 +11,4 @@ Version: @ZLIB_FULL_VERSION@
 
 Requires:
 Libs: -L${libdir} -L${sharedlibdir} -lz@SUFFIX@
-Cflags: -I${includedir}
+Cflags: -I${includedir} @PKG_CONFIG_CFLAGS@