1. Libtiff update, so it is built for architectures specified in ARCH…

…S environment variable only.

2. Makefile updated to support ARCHS environment variable only for building specified architectures only.
3. README_howto_compile_libraries.md updated to explain above changes.
4. Prebuilt script changed to build only active architectures of dependent libraries in Travis CI build environment.

.travis.yml

@@ -6,8 +6,11 @@ xcode_sdk:
 xcode_scheme: 
     - Template Framework Project
     - TestsProject
+env:
+    - BUILD_DEPENDENT_LIBRARIES=true
+    - BUILD_DEPENDENT_LIBRARIES=false
 before_install:
-    sudo pip install PyYAML; sudo pip install cpp-coveralls; cd TesseractOCR; make; cd ..
+    sudo pip install PyYAML; sudo pip install cpp-coveralls
 after_success:
     ./scripts/coveralls.rb --extension m --extension mm --exclude-folder include --exclude-folder TestsProject
 

Tesseract OCR iOS.xcodeproj/project.pbxproj

@@ -557,7 +557,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "export PATH=\"$PATH:/usr/local/bin\" # That's the path where the aclocal is installed\ncd TesseractOCR\n#make\n";
+			shellScript = "# just uncomment the following line if you wish to make dependent libraries from xcode\n#export BUILD_DEPENDENT_LIBRARIES=\"true\"\nif [ $BUILD_DEPENDENT_LIBRARIES = \"true\" ]\nthen\n    cd TesseractOCR\n    make\nfi\n";
 		};
 /* End PBXShellScriptBuildPhase section */
 

TesseractOCR/Makefile

@@ -30,11 +30,15 @@ libjpegfiles = libjpeg.a
 libtifffiles = libtiff.a
 
 sdks = $(SDK_IPHONEOS_PATH) $(SDK_IPHONEOS_PATH) $(SDK_IPHONEOS_PATH) $(SDK_IPHONESIMULATOR_PATH) $(SDK_IPHONESIMULATOR_PATH)
-archs = armv7 armv7s arm64 i386 x86_64
-arch_names = arm-apple-darwin7 arm-apple-darwin7s arm-apple-darwin64 i386-apple-darwin x86_64-apple-darwin
+archs_all = armv7 armv7s arm64 i386 x86_64
+arch_names_all = arm-apple-darwin7 arm-apple-darwin7s arm-apple-darwin64 i386-apple-darwin x86_64-apple-darwin
+arch_names = $(foreach arch, $(ARCHS), $(call swap, $(arch), $(archs_all), $(arch_names_all) ) )
+ARCHS ?= $(archs_all)
 
 libleptfolders = $(foreach arch, $(arch_names), $(LEPTON_SRC)/$(arch)/)
 libtessfolders = $(foreach arch, $(arch_names), $(TESSERACT_SRC)/$(arch)/)
+libleptfolders_all = $(foreach arch, $(arch_names_all), $(LEPTON_SRC)/$(arch)/)
+libtessfolders_all = $(foreach arch, $(arch_names_all), $(TESSERACT_SRC)/$(arch)/)
 
 libleptmakefile = $(foreach folder, $(libleptfolders), $(addprefix $(folder), Makefile) )
 libtessmakefile = $(foreach folder, $(libtessfolders), $(addprefix $(folder), Makefile) )
@@ -63,6 +67,8 @@ swap  = $(word $(call index,$(1),$(2)),$(3))
 
 dependant_libs = $(libtessfat) $(libleptfat) $(libpngfat) $(libjpegfat) $(libtifffat)
 
+common_cflags = -L$(LIB_FAT_DIR) -Qunused-arguments -arch $(call swap, $*, $(arch_names_all), $(archs_all)) -pipe -no-cpp-precomp -isysroot $$SDKROOT -miphoneos-version-min=$(IOS_DEPLOY_TGT) -O2
+
 .PHONY : all
 all : $(dependant_libs)
 
@@ -71,19 +77,17 @@ all : $(dependant_libs)
 #######################
 $(libtessfat) : $(libtess)
 	mkdir -p $(LIB_FAT_DIR)
-	xcrun lipo $^ -create -output $@
+	xcrun lipo $(realpath $(addsuffix lib/$(@F), $(libtessfolders_all)) ) -create -output $@
 	mkdir -p $(TESS_INC_DIR)
 	cp -rvf $(firstword $(libtessfolders))/include/tesseract $(TESS_INC_DIR)
 
-$(libtess) : $(liblept) $(libtessmakefile)
-	echo $(libtess)
-	cd $(abspath $(@D)/..) ; \
-	$(MAKE) -sj8 && $(MAKE) install
+$(libtess) : $(libtessmakefile)
+	cd $(abspath $(@D)/..) && $(MAKE) -sj8 && $(MAKE) install
 
-$(TESSERACT_SRC)/%/Makefile : $(libtessconfig)
+$(TESSERACT_SRC)/%/Makefile : $(libtessconfig) $(libleptfat)
 	export LIBS="-lz -lpng -ljpeg -ltiff" ; \
-	export SDKROOT="$(call swap, $*, $(arch_names), $(sdks))" ; \
-	export CFLAGS="-I$(TESSERACT_SRC)/$*/ -L$(LIB_FAT_DIR) -Qunused-arguments -arch $(call swap, $*, $(arch_names), $(archs)) -pipe -no-cpp-precomp -isysroot $$SDKROOT -miphoneos-version-min=$(IOS_DEPLOY_TGT) -O2" ; \
+	export SDKROOT="$(call swap, $*, $(arch_names_all), $(sdks))" ; \
+	export CFLAGS="-I$(TESSERACT_SRC)/$*/ $(common_cflags)" ; \
 	export CPPFLAGS=$$CFLAGS ; \
 	export CXXFLAGS="$$CFLAGS -Wno-deprecated-register"; \
 	export LDFLAGS="-L$$SDKROOT/usr/lib/ -L$(LEPTON_SRC)/$*/src/.libs" ; \
@@ -94,26 +98,25 @@ $(TESSERACT_SRC)/%/Makefile : $(libtessconfig)
 	../configure --host=$* --prefix=`pwd` --enable-shared=no --disable-graphics
 
 $(libtessconfig) : $(libtessautogen)
-	cd $(@D) ; \
-	./autogen.sh
+	cd $(@D) && ./autogen.sh 2> /dev/null
 
 #######################
 # LEPTONLIB
 #######################
 $(libleptfat) : $(liblept)
 	mkdir -p $(LIB_FAT_DIR)
-	xcrun lipo $^ -create -output $@
+	xcrun lipo $(realpath $(addsuffix lib/$(@F), $(libleptfolders_all)) ) -create -output $@
 	mkdir -p $(LEPT_INC_DIR)
 	cp -rvf $(firstword $(libleptfolders))/include/leptonica $(LEPT_INC_DIR)
 
 $(liblept) : $(libleptmakefile)
 	cd $(abspath $(@D)/..) ; \
-	$(MAKE) -s && $(MAKE) install
+	$(MAKE) -sj8 && $(MAKE) install
 
 $(LEPTON_SRC)/%/Makefile : $(imagesfat) $(libleptconfig)
 	export LIBS="-lz -lpng -ljpeg -ltiff" ; \
-	export SDKROOT="$(call swap, $*, $(arch_names), $(sdks))" ; \
-	export CFLAGS="-I$(INCLUDE_DIR) -L$(LIB_FAT_DIR) -Qunused-arguments -arch $(call swap, $*, $(arch_names), $(archs)) -pipe -no-cpp-precomp -isysroot $$SDKROOT -miphoneos-version-min=$(IOS_DEPLOY_TGT) -O2" ; \
+	export SDKROOT="$(call swap, $*, $(arch_names_all), $(sdks))" ; \
+	export CFLAGS="-I$(INCLUDE_DIR) $(common_cflags)" ; \
 	export CPPFLAGS=$$CFLAGS ; \
 	export CXXFLAGS="$$CFLAGS -Wno-deprecated-register"; \
     export LDFLAGS="-L$$SDKROOT/usr/lib/ -L$(LIB_FAT_DIR)" ; \
@@ -130,9 +133,9 @@ $(imagesfat) : $(images)
 	mkdir -p $(INCLUDE_DIR)
 	cp -rvf $(IMAGE_INC_DIR) $(INCLUDE_DIR)
 
-$(images) : $(imagesmakefile)
+$(images) : $(imagesmakefile) FORCE
 	cd $(IMAGE_SRC) ; \
-	$(MAKE) -s
+	until `$(MAKE) -s`; do sleep 5; done
 
 #######################
 # Download dependencies
@@ -163,41 +166,33 @@ cleanimages :
 
 .PHONY : cleanlept
 cleanlept :
-	for folder in $(libleptfolders); do \
-		if [ -d $$folder ]; then \
-			cd $$folder; \
-			$(MAKE) clean; \
-		fi; \
+	for folder in $(realpath $(libleptfolders_all) ); do \
+        cd $$folder; \
+        $(MAKE) clean; \
 	done ;
 
 .PHONY : cleantess
 cleantess :
-	for folder in $(libtessfolders); do \
-		if [ -d $$folder ]; then \
-            cd $$folder; \
-			$(MAKE) clean; \
-		fi; \
+	for folder in $(realpath $(libtessfolders_all) ); do \
+        cd $$folder; \
+        $(MAKE) clean; \
     done ;
 
 .PHONY : mostlycleanimages
 mostlycleanimages :
 
 .PHONY : mostlycleanlept
 mostlycleanlept :
-	for folder in $(libleptfolders); do \
-		if [ -d $$folder ]; then \
-			cd $$folder; \
-			$(MAKE) mostlyclean; \
-		fi; \
+	for folder in $(realpath $(libleptfolders) ); do \
+        cd $$folder; \
+        $(MAKE) mostlyclean; \
     done ;
 
 .PHONY : mostlycleantess
 mostlycleantess :
-	for folder in $(libtessfolders); do \
-		if [ -d $$folder ]; then \
-			cd $$folder; \
-			$(MAKE) mostlyclean; \
-		fi; \
+	for folder in $(realpath $(libtessfolders_all) ); do \
+        cd $$folder; \
+        $(MAKE) mostlyclean; \
     done ;
 
 .PHONY : distcleanimages
@@ -216,3 +211,5 @@ distcleantess :
 	-rm -rf $(libtessfat)
 	-rm -rf $(TESSERACT_SRC)
 
+.PHONY : FORCE
+FORCE :

TesseractOCR/README_howto_compile_libaries.md

@@ -9,6 +9,10 @@ First you need to install these tools:
 - Libtool
 
 ### Step 2 - Build
-Run `make` in the `TesseractOCR` subfolder. This first compiles dependent libraries (png, jpeg, tiff, leptonica) and then tesseract for every architecture iOS/simulator uses (arm7 arm7s arm64 i386 x86_64), and then combines the resulting libs into one library file. It does this for both dependent libraries and tesseract, so the final results of the script are "libpng.a", "libjpeg.a", "libtiff.a", "libtesseract_all.a", "liblept.a", and "include" directories for both leptonica, tesseract and image libraries. Finally, the script copies these results into the "lib" and "include" directories inside `TesseractOCR` directory.
+Run `make` in the `TesseractOCR` subfolder. This first compiles dependent libraries (png, jpeg, tiff, leptonica) and then tesseract for every architecture iOS/simulator uses (arm7 arm7s arm64 i386 x86_64), and then combines the resulting libs into one library file. It does this for both dependent libraries and tesseract, so the final results of the script are "libpng.a", "libjpeg.a", "libtiff.a", "libtesseract.a", "liblept.a", and "include" directories for both leptonica, tesseract and image libraries. Finally, the script copies these results into the "lib" and "include" directories inside `TesseractOCR` directory.
 
-The very first build may take half an hour or so depending on the processing power, but the later builds will not build dependencies until any files being changed.
+The very first total build (includinf all architectures) may take half an hour or so depending on the processing power, but the later builds will not build dependencies until any files being changed.
+
+By default every "fat" library will contain all architectures specified above. So it can be linked with apps either for devices or simulator. If you don't need all architectures above (for example, for AppStore submittion), just specify the necessary architectures in the `ARCHS` environement variable as follows:
+
+    export ARCHS=armv7, armv7s, arm64