cmake: fix travis build

Author: zdenop

.travis.yml

@@ -5,7 +5,7 @@ language: cpp
 dist: trusty
 
 env:
-  - LEPT_VER=1.77.0
+  - LEPT_VER=1.78.0
 
 notifications:
   email: false

CMakeLists.txt

@@ -46,7 +46,7 @@ string(REGEX REPLACE "^([^.]*)\\..*" "\\1" VERSION_MAJOR ${VERSION_PLAIN})
 string(REGEX REPLACE "^[^.]*\\.([^.]*)\\..*" "\\1" VERSION_MINOR ${VERSION_PLAIN})
 string(REGEX REPLACE "^[^.]*\\.[^.]*\\.([0-9]*).*" "\\1" VERSION_PATCH ${VERSION_PLAIN})
 if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/.git)
-    execute_process(COMMAND git describe --abbrev=4
+    execute_process(COMMAND git --git-dir ${CMAKE_CURRENT_SOURCE_DIR}/.git describe --abbrev=4
         OUTPUT_VARIABLE GIT_REV)
         string(REGEX REPLACE "\n$" "" PACKAGE_VERSION "${GIT_REV}")
 endif()
@@ -142,27 +142,28 @@ endif()
 #
 ###############################################################################
 
-if(NOT CPPAN_BUILD AND NOT Leptonica_DIR)
-    find_package(Leptonica ${MINIMUM_LEPTONICA_VERSION} CONFIG QUIET)
-    if (NOT Leptonica_FOUND)
-        find_package(PkgConfig QUIET)
-        if(PKG_CONFIG_EXECUTABLE)
-            pkg_check_modules(Leptonica REQUIRED lept>=${MINIMUM_LEPTONICA_VERSION})
-            link_directories(${Leptonica_LIBRARY_DIRS})
-        endif(PKG_CONFIG_EXECUTABLE)
-        # message ("Leptonica: ${Leptonica_LIBRARY_DIRS}, ${Leptonica_FOUND}")
-
-        if (NOT Leptonica_FOUND)
-            message(FATAL_ERROR "Cannot find required library Leptonica. Quitting!")
-        endif()
-    endif()
-else()
+if(CPPAN_BUILD)
     if (STATIC)
         set(CPPAN_BUILD_SHARED_LIBS 0)
     else()
         set(CPPAN_BUILD_SHARED_LIBS 1)
     endif()
     add_subdirectory(.cppan)
+else()
+    if(Leptonica_DIR)
+        message(STATUS "Using Leptonica directory ${Leptonica_DIR} for build.")
+    else()
+        find_package(Leptonica ${MINIMUM_LEPTONICA_VERSION})
+        if (NOT Leptonica_FOUND)
+            find_package(PkgConfig)
+            if(PKG_CONFIG_EXECUTABLE)
+                pkg_check_modules(Leptonica REQUIRED lept>=${MINIMUM_LEPTONICA_VERSION})
+                link_directories(${Leptonica_LIBRARY_DIRS})
+            else()
+                message(FATAL_ERROR "Cannot find required library Leptonica. Quitting!")
+            endif(PKG_CONFIG_EXECUTABLE)
+        endif()
+    endif()
 endif()
 
 find_package(OpenCL QUIET)