Merge pull request #134 from Alexhuszagh/master

Add 'FindMINIZIP' module to find system minizip

cmake/FindMINIZIP.cmake

@@ -0,0 +1,121 @@
+#  :copyright: (c) 2017 Alex Huszagh.
+#  :license: FreeBSD, see LICENSE.txt for more details.
+
+# FindMINIZIP
+# -----------
+#
+# Find MINIZIP include dirs and libraries
+#
+# Use this module by invoking find_package with the form::
+#
+#   find_package(MINIZIP
+#     [version] [EXACT]      # Minimum or EXACT version e.g. 1.0.6
+#     [REQUIRED]             # Fail with error if MINIZIP is not found
+#     )
+#
+# You may also set `MINIZIP_USE_STATIC_LIBS` to prefer static libraries
+# to shared ones.
+#
+# If found, `MINIZIP_FOUND` will be set to true, and `MINIZIP_LIBRARIES`
+# and `MINIZIP_INCLUDE_DIRS` will both be set.
+#
+# You may optionally set `MINIZIP_ROOT` to specify a custom root directory
+# for the MINIZIP installation.
+#
+
+include(CheckCXXSourceCompiles)
+include(FindPackage)
+
+# PATHS
+# -----
+
+set(MINIZIP_SEARCH_PATHS)
+
+if(MINIZIP_ROOT)
+    list(APPEND MINIZIP_SEARCH_PATHS ${MINIZIP_ROOT})
+endif()
+
+if(WIN32)
+    list(APPEND ZLIB_SEARCH_PATHS
+        "$ENV{PROGRAMFILES}/minizip"
+    )
+endif()
+
+unset(MINIZIP_SYSTEM_ROOT)
+unset(MINIZIP_CUSTOM_ROOT)
+unset(MINIZIP_SEARCH_HKEY)
+
+# FIND
+# ----
+
+# INCLUDE DIRECTORY
+SetSuffixes(MINIZIP)
+foreach(search ${MINIZIP_SEARCH_PATHS})
+    FIND_PATH(MINIZIP_INCLUDE_DIR
+        NAMES minizip/zip.h
+        PATHS ${search}
+        PATH_SUFFIXES include
+    )
+endforeach(search)
+
+if(NOT MINIZIP_INCLUDE_DIR)
+    FIND_PATH(MINIZIP_INCLUDE_DIR minizip/zip.h PATH_SUFFIXES include)
+endif()
+
+# LIBRARY PATHS
+set(MINIZIP_LIBRARY_NAMES minizip)
+if(CMAKE_BUILD_TYPE MATCHES Debug)
+    list(APPEND MINIZIP_LIBRARY_NAMES minizipd)
+endif()
+
+foreach(search ${MINIZIP_SEARCH_PATHS})
+    FIND_LIBRARY(MINIZIP_LIBRARY
+        NAMES ${MINIZIP_LIBRARY_NAMES}
+        PATHS ${search}
+        PATH_SUFFIXES lib
+    )
+endforeach(search)
+
+if(NOT MINIZIP_LIBRARY)
+    FIND_LIBRARY(MINIZIP_LIBRARY NAMES ${MINIZIP_LIBRARY_NAMES} PATH_SUFFIXES lib)
+endif()
+
+set(MINIZIP_INCLUDE_DIRS ${MINIZIP_INCLUDE_DIR})
+set(MINIZIP_LIBRARIES ${MINIZIP_LIBRARY})
+
+CheckFound(MINIZIP)
+FindStaticLibs(MINIZIP)
+
+# VERSION
+# -------
+
+if(MINIZIP_FOUND)
+   file(STRINGS "${MINIZIP_INCLUDE_DIRS}/zlib.h" MINIZIP_VERSION_CONTENTS REGEX "Version [0-9]+\\.[0-9]+(\\.[0-9]+)?")
+    string(REGEX REPLACE ".*Version ([0-9]+)\\.[0-9]+" "\\1" MINIZIP_VERSION_MAJOR "${MINIZIP_VERSION_CONTENTS}")
+    string(REGEX REPLACE ".*Version [0-9]+\\.([0-9]+)" "\\1" MINIZIP_VERSION_MINOR "${MINIZIP_VERSION_CONTENTS}")
+    set(MINIZIP_VERSION_PATCH 0)
+
+    set(MINIZIP_VERSION_STRING "${MINIZIP_VERSION_MAJOR}.${MINIZIP_VERSION_MINOR}.${MINIZIP_VERSION_PATCH}")
+    set(MINIZIP_VERSION ${MINIZIP_VERSION_STRING})
+
+    MatchVersion(MINIZIP)
+endif()
+
+# COMPILATION
+# -----------
+
+set(MINIZIP_CODE "
+#include <minizip/zip.h>
+int main(void)
+{
+    zip_fileinfo zipfile_info;
+
+    return 0;
+}
+"
+)
+
+if(MINIZIP_FOUND)
+    CheckCompiles(MINIZIP)
+endif()
+RequiredPackageFound(MINIZIP)