libjpeg-turbo: Change library name on Android

When using libjpeg-turbo as a shared object (libjpeg.so) on Android,
there are crashes when accessing JPEG functions on some arm devices.
Static linking increases binary size when the library is used by
multiple other shared objects (Qt plugin, GDAL, Poppler, TIFF).

Assuming that the issue is related to some other "libjpeg.so", try
to resolve the dynamic linking issue by changing the filename to
"libjpeg-turbo.so" in Android builds.

Some depending libraries can find the alternative name via
pkg-config. Depending CMake projects must be configured with
-DJPEG_NAMES=jpeg-turbo. GDAL needs an individual patch.

Author: dg0yt

gdal-3.1.3+dfsg.cmake

@@ -71,6 +71,81 @@ set(test_system_gdal [[
 	set(extra_cxxflags "-Wno-strict-overflow -Wno-null-dereference -Wno-old-style-cast" PARENT_SCOPE)
 ]])
 
+set(libjpeg_patch [[
+--- a/configure
++++ b/configure
+@@ -1247,6 +1247,7 @@
+ CXXCPP
+ PKG_CONFIG
+ bashcompdir
++LIBJPEG_SUFFIX
+ PQ_CFLAGS
+ PQ_LIBS
+ OGDI_CFLAGS
+@@ -30093,13 +30093,13 @@
+ 
+ elif test "$with_jpeg" = "yes" -o "$with_jpeg" = "" ; then
+ 
+-  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for jpeg_read_scanlines in -ljpeg" >&5
+-$as_echo_n "checking for jpeg_read_scanlines in -ljpeg... " >&6; }
++  { $as_echo "$as_me:${as_lineno-$LINENO}: checking for jpeg_read_scanlines in -ljpeg${LIBJPEG_SUFFIX}" >&5
++$as_echo_n "checking for jpeg_read_scanlines in -ljpeg${LIBJPEG_SUFFIX}... " >&6; }
+ if ${ac_cv_lib_jpeg_jpeg_read_scanlines+:} false; then :
+   $as_echo_n "(cached) " >&6
+ else
+   ac_check_lib_save_LIBS=$LIBS
+-LIBS="-ljpeg  $LIBS"
++LIBS="-ljpeg${LIBJPEG_SUFFIX} $LIBS"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ 
+@@ -30172,7 +30172,7 @@
+   fi
+ 
+   if test "$JPEG_SETTING" = "external" ; then
+-    LIBS="-ljpeg $LIBS"
++    LIBS="-ljpeg${LIBJPEG_SUFFIX} $LIBS"
+     echo "using pre-installed libjpeg."
+   else
+     echo "using internal jpeg code."
+@@ -30187,7 +30187,7 @@
+ else
+ 
+   JPEG_SETTING=external
+-  LIBS="-L$with_jpeg -L$with_jpeg/lib -ljpeg $LIBS"
++  LIBS="-L$with_jpeg -L$with_jpeg/lib -ljpeg${LIBJPEG_SUFFIX} $LIBS"
+   EXTRA_INCLUDES="-I$with_jpeg -I$with_jpeg/include $EXTRA_INCLUDES"
+ 
+   echo "using libjpeg from $with_jpeg."
+@@ -31550,7 +31550,7 @@
+   $as_echo_n "(cached) " >&6
+ else
+   ac_check_lib_save_LIBS=$LIBS
+-LIBS="-lmfhdfalt -ldfalt -ljpeg -lz $LIBS"
++LIBS="-lmfhdfalt -ldfalt -ljpeg${LIBJPEG_SUFFIX} -lz $LIBS"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ 
+@@ -31596,7 +31596,7 @@
+   $as_echo_n "(cached) " >&6
+ else
+   ac_check_lib_save_LIBS=$LIBS
+-LIBS="-lmfhdfalt -ldfalt -lsz -ljpeg -lz $LIBS"
++LIBS="-lmfhdfalt -ldfalt -lsz -ljpeg${LIBJPEG_SUFFIX} -lz $LIBS"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+ /* end confdefs.h.  */
+ 
+@@ -40801,7 +40801,7 @@
+         PDFIUM_LIB="-L$with_pdfium/lib -lpdfium"
+     fi
+ 
+-    PDFIUM_LIB="$PDFIUM_LIB -ljpeg -lpng -lz -llcms2 -lpthread -lm -lstdc++"
++    PDFIUM_LIB="$PDFIUM_LIB -ljpeg${LIBJPEG_SUFFIX} -lpng -lz -llcms2 -lpthread -lm -lstdc++"
+ 
+     if test ! -z "`uname | grep Darwin`" ; then
+         PDFIUM_LIB="-stdlib=libstdc++ $PDFIUM_LIB"
+]])
+
 superbuild_package(
   NAME           gdal-patches
   VERSION        ${patch_version}
@@ -103,13 +178,17 @@ superbuild_package(
     tiff
     zlib
 
+  SOURCE_WRITE
+    libjpeg.patch  libjpeg_patch
   SOURCE
     URL            ${base_url}gdal_${version}.orig.tar.xz
     URL_HASH       ${download_hash}
     PATCH_COMMAND
       "${CMAKE_COMMAND}"
         -Dpackage=gdal-patches-${patch_version}
         -P "${APPLY_PATCHES_SERIES}"
+    COMMAND
+      patch -p1 < libjpeg.patch
 
   USING            USE_SYSTEM_GDAL patch_version extra_cflags extra_cxxflags
   BUILD_CONDITION  ${test_system_gdal}
@@ -120,6 +199,9 @@ superbuild_package(
     COMMAND
       "${CMAKE_COMMAND}" -E copy_directory "${SOURCE_DIR}" "${BINARY_DIR}"
     COMMAND
+      $<$<BOOL:@ANDROID@>:
+        "${CMAKE_COMMAND}" -E env LIBJPEG_SUFFIX=-turbo  # needs libjpeg patch
+      >
       "${BINARY_DIR}/configure"
         "--prefix=${CMAKE_INSTALL_PREFIX}"
         $<$<BOOL:@CMAKE_CROSSCOMPILING@>:

libjpeg-turbo-2.0.5.cmake

@@ -48,6 +48,55 @@ set(test_system_jpeg [[
 	endif()
 ]])
 
+set(suffix_patch [[
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -189,6 +189,13 @@
+ report_option(ENABLE_SHARED "Shared libraries")
+ report_option(ENABLE_STATIC "Static libraries")
+ 
++if(NOT MSVC)
++  set(LIBJPEG_SUFFIX "" CACHE STRING "Suffix to be added the library name")
++  report_option(LIBJPEG_SUFFIX "Library name suffix")
++else()
++  set(LIBJPEG_SUFFIX "")
++endif()
++
+ if(WITH_12BIT)
+   set(WITH_ARITH_DEC 0)
+   set(WITH_ARITH_ENC 0)
+@@ -566,7 +573,7 @@
+   add_library(jpeg-static STATIC ${JPEG_SOURCES} $<TARGET_OBJECTS:simd>
+     ${SIMD_OBJS})
+   if(NOT MSVC)
+-    set_target_properties(jpeg-static PROPERTIES OUTPUT_NAME jpeg)
++    set_target_properties(jpeg-static PROPERTIES OUTPUT_NAME jpeg${LIBJPEG_SUFFIX})
+   endif()
+ endif()
+ 
+--- a/release/libjpeg.pc.in
++++ b/release/libjpeg.pc.in
+@@ -6,5 +6,5 @@
+ Name: libjpeg
+ Description: A SIMD-accelerated JPEG codec that provides the libjpeg API
+ Version: @VERSION@
+-Libs: -L${libdir} -ljpeg
++Libs: -L${libdir} -ljpeg@LIBJPEG_SUFFIX@
+ Cflags: -I${includedir}
+--- a/sharedlib/CMakeLists.txt
++++ b/sharedlib/CMakeLists.txt
+@@ -38,6 +38,9 @@
+ add_library(jpeg SHARED ${JPEG_SRCS} ${DEFFILE} $<TARGET_OBJECTS:simd>
+   ${SIMD_OBJS})
+ 
++if(NOT MSVC)
++  set_target_properties(jpeg PROPERTIES OUTPUT_NAME jpeg${LIBJPEG_SUFFIX})
++endif()
+ set_target_properties(jpeg PROPERTIES SOVERSION ${SO_MAJOR_VERSION}
+   VERSION ${SO_MAJOR_VERSION}.${SO_AGE}.${SO_MINOR_VERSION})
+ if(APPLE AND (NOT CMAKE_OSX_DEPLOYMENT_TARGET OR
+]])
+
 superbuild_package(
   NAME           libjpeg-turbo-patches
   VERSION        ${patch_version}
@@ -64,6 +113,8 @@ superbuild_package(
     source:libjpeg-turbo-patches-${patch_version}
     host:nasm
 
+  SOURCE_WRITE
+    suffix.patch   suffix_patch
   SOURCE
     DOWNLOAD_NAME  libjpeg-turbo_${version}.orig.tar.gz
     URL            ${base_url}libjpeg-turbo_${version}.orig.tar.gz
@@ -72,6 +123,8 @@ superbuild_package(
       "${CMAKE_COMMAND}"
         -Dpackage=libjpeg-turbo-patches-${patch_version}
         -P "${APPLY_PATCHES_SERIES}"
+    COMMAND
+      patch -p1 < suffix.patch
 
   USING            USE_SYSTEM_LIBJPEG patch_version
   BUILD_CONDITION  ${test_system_jpeg}
@@ -82,8 +135,7 @@ superbuild_package(
       -DENABLE_SHARED=ON
       -DENABLE_STATIC=OFF
       $<$<BOOL:@ANDROID@>:
-        -DENABLE_SHARED=OFF
-        -DENABLE_STATIC=ON
+        -DLIBJPEG_SUFFIX=-turbo  # needs suffix patch
         -DCMAKE_ASM_FLAGS="--target=${SUPERBUILD_TOOLCHAIN_TRIPLET}${ANDROID_NATIVE_API_LEVEL}"
       >
     INSTALL_COMMAND

libwebp-1.1.0.cmake

@@ -57,7 +57,6 @@ superbuild_package(
   VERSION        ${patch_version}
   DEPENDS
     giflib
-    libjpeg
     libpng
     zlib
 
@@ -84,6 +83,7 @@ superbuild_package(
       -DWEBP_BUILD_WEBPMUX=OFF
       -DWEBP_BUILD_EXTRAS=OFF
       -DWEBP_BUILD_WEBP_JS=OFF
+      -DCMAKE_DISABLE_FIND_PACKAGE_JPEG=ON
       -DCMAKE_DISABLE_FIND_PACKAGE_TIFF=ON # Our libtiff depends on libwebp.
     INSTALL_COMMAND
       "${CMAKE_COMMAND}" --build . --target install/strip/fast

poppler-20.09.cmake

@@ -118,6 +118,7 @@ superbuild_package(
       -DCMAKE_DISABLE_FIND_PACKAGE_NSS3=ON
       ${poppler_font_configuration}
       $<$<BOOL:@ANDROID@>:
+        -DJPEG_NAMES=jpeg-turbo
         -D_FILE_OFFSET_BITS=
       >
    INSTALL_COMMAND

tiff-4.1.0.cmake

@@ -107,6 +107,9 @@ superbuild_package(
       # We don't provide all possible sources (yet)
       "-Djbig:BOOL=OFF"
       "-Dzstd:BOOL=OFF"
+      $<$<BOOL:@ANDROID@>:
+        -DJPEG_NAMES=jpeg-turbo
+      >
       # GNUInstallDirs doesn't work with CMAKE_STAGING_PREFIX
       -UCMAKE_STAGING_PREFIX
     INSTALL_COMMAND