commit 821fc34e224a4e82563f0561be2e60fd1d4ec92b
Author: Tomas Korbar <tkorbar@redhat.com>
Date:   Tue Nov 14 12:42:45 2023 +0100

    Add gssapi linking

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3f10eae..e435e29 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -51,7 +51,7 @@ option(DEBUG "Enable debugging info and strict compile warnings" OFF)
 option(SKIP_SHARED "Disable building shared Serf libraries" OFF)
 option(SKIP_STATIC "Disable building static Serf libraries" OFF)
 option(LIBDIR "Install directory for architecture-dependent libraries" "")
-option(GSSAPI "Path to GSSAPI's install area" "")
+option(GSSAPI "Use pkg-config to link with GSSAPI" OFF)
 option(BROTLI "Path to Brotli's install area" "")
 option(DISABLE_LOGGING "Disable the logging framework at compile time" OFF)
 option(SKIP_TESTS "Disable building the unit tests and utilities" OFF)
@@ -156,10 +156,14 @@ if(SERF_WINDOWS)
   )
 endif(SERF_WINDOWS)
 
-
 # Process build options for dependency search
 if(GSSAPI)
-  message(WARNING "option GSSAPI is not implemented")
+  find_package(PkgConfig REQUIRED)
+  pkg_check_modules(GSSAPI krb5-gssapi)
+  if (NOT GSSAPI_FOUND)
+    message(WARNING "GSSAPI pkgconfig module was not found")
+  endif()
+  add_definitions("-DSERF_HAVE_GSSAPI")
 endif()
 
 if(BROTLI)
@@ -285,6 +289,11 @@ if(NOT SKIP_SHARED)
                         PRIVATE ${SERF_PRIVATE_TARGETS}
                                 ${SERF_STANDARD_LIBRARIES}
                         PUBLIC ${SERF_PUBLIC_TARGETS})
+  if (GSSAPI_FOUND)
+    target_link_libraries(serf_shared PRIVATE ${GSSAPI_LIBRARIES})
+    target_include_directories(serf_shared PRIVATE ${GSSAPI_INCLUDE_DIRS})
+    target_compile_options(serf_shared PRIVATE ${GSSAPI_CFLAGS_OTHER})
+  endif (GSSAPI_FOUND)
   set_target_properties(serf_shared PROPERTIES
                         VERSION ${SERF_VERSION}
                         SOVERSION ${SERF_SOVERSION})
@@ -307,6 +316,11 @@ if(NOT SKIP_STATIC)
                         ${SERF_PRIVATE_TARGETS}
                         ${SERF_PUBLIC_TARGETS}
                         ${SERF_STANDARD_LIBRARIES})
+  if (GSSAPI_FOUND)
+    target_link_libraries(serf_shared PRIVATE ${GSSAPI_LIBRARIES})
+    target_include_directories(serf_shared PRIVATE ${GSSAPI_INCLUDE_DIRS})
+    target_compile_options(serf_shared PRIVATE ${GSSAPI_CFLAGS_OTHER})
+  endif (GSSAPI_FOUND)
   list(APPEND SERF_TARGETS "serf_static")
 endif()