Do not call pkg_check_module if the MODULE_FOUND is already cached

cmake/Modules/FindBOTAN.cmake

@@ -17,8 +17,10 @@
 
 include(FindPkgConfig)
 
-pkg_check_modules(BOTAN botan-2)
+if(NOT BOTAN_FOUND)
-pkg_check_modules(BOTAN botan-1.11)
+  pkg_check_modules(BOTAN botan-2)
+  pkg_check_modules(BOTAN botan-1.11)
+endif()
 
 if(NOT BOTAN_FOUND)
   find_path(BOTAN_INCLUDE_DIRS NAMES botan/botan.h

cmake/Modules/FindLIBIDN.cmake

@@ -16,7 +16,9 @@
 # This file is in the public domain
 
 include(FindPkgConfig)
-pkg_check_modules(LIBIDN libidn)
+if(NOT LIBIDN_FOUND)
+  pkg_check_modules(LIBIDN libidn)
+endif()
 
 if(NOT LIBIDN_FOUND)
   find_path(LIBIDN_INCLUDE_DIRS NAMES stringprep.h

cmake/Modules/FindLIBUUID.cmake

@@ -16,7 +16,9 @@
 # This file is in the public domain
 
 include(FindPkgConfig)
-pkg_check_modules(LIBUUID uuid)
+if(NOT LIBUUID_FOUND)
+  pkg_check_modules(LIBUUID uuid)
+endif()
 
 if(NOT LIBUUID_FOUND)
   find_path(LIBUUID_INCLUDE_DIRS NAMES uuid/uuid.h

cmake/Modules/FindSYSTEMD.cmake

@@ -16,7 +16,9 @@
 # This file is in the public domain
 
 include(FindPkgConfig)
-pkg_check_modules(SYSTEMD libsystemd)
+if(NOT SYSTEMD_FOUND)
+  pkg_check_modules(SYSTEMD libsystemd)
+endif()
 
 if(NOT SYSTEMD_FOUND)
   find_path(SYSTEMD_INCLUDE_DIRS NAMES systemd/sd-daemon.h