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-rw-r--r--cmake/FindLibngtcp2.cmake41
1 files changed, 41 insertions, 0 deletions
diff --git a/cmake/FindLibngtcp2.cmake b/cmake/FindLibngtcp2.cmake
new file mode 100644
index 0000000..c670114
--- /dev/null
+++ b/cmake/FindLibngtcp2.cmake
@@ -0,0 +1,41 @@
+# - Try to find libngtcp2
+# Once done this will define
+# LIBNGTCP2_FOUND - System has libngtcp2
+# LIBNGTCP2_INCLUDE_DIRS - The libngtcp2 include directories
+# LIBNGTCP2_LIBRARIES - The libraries needed to use libngtcp2
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_LIBNGTCP2 QUIET libngtcp2)
+
+find_path(LIBNGTCP2_INCLUDE_DIR
+ NAMES ngtcp2/ngtcp2.h
+ HINTS ${PC_LIBNGTCP2_INCLUDE_DIRS}
+)
+find_library(LIBNGTCP2_LIBRARY
+ NAMES ngtcp2
+ HINTS ${PC_LIBNGTCP2_LIBRARY_DIRS}
+)
+
+if(LIBNGTCP2_INCLUDE_DIR)
+ set(_version_regex "^#define[ \t]+NGTCP2_VERSION[ \t]+\"([^\"]+)\".*")
+ file(STRINGS "${LIBNGTCP2_INCLUDE_DIR}/ngtcp2/version.h"
+ LIBNGTCP2_VERSION REGEX "${_version_regex}")
+ string(REGEX REPLACE "${_version_regex}" "\\1"
+ LIBNGTCP2_VERSION "${LIBNGTCP2_VERSION}")
+ unset(_version_regex)
+endif()
+
+include(FindPackageHandleStandardArgs)
+# handle the QUIETLY and REQUIRED arguments and set LIBNGTCP2_FOUND
+# to TRUE if all listed variables are TRUE and the requested version
+# matches.
+find_package_handle_standard_args(Libngtcp2 REQUIRED_VARS
+ LIBNGTCP2_LIBRARY LIBNGTCP2_INCLUDE_DIR
+ VERSION_VAR LIBNGTCP2_VERSION)
+
+if(LIBNGTCP2_FOUND)
+ set(LIBNGTCP2_LIBRARIES ${LIBNGTCP2_LIBRARY})
+ set(LIBNGTCP2_INCLUDE_DIRS ${LIBNGTCP2_INCLUDE_DIR})
+endif()
+
+mark_as_advanced(LIBNGTCP2_INCLUDE_DIR LIBNGTCP2_LIBRARY)