85 Commits

Author SHA1 Message Date
Brendan Polin
3611168b5a Update BUILDING.md
Edited the vcpkg instructions for windows so they just work if you copy and paste
2025-01-04 00:37:38 +00:00
Kornel
ed667d4bfd Merge remote-tracking branch 'libjpeg-turbo/3.0.x' into mozjpeg
* libjpeg-turbo/3.0.x: (135 commits)
  Ensure methods called by global funcs are init'd
  Build: Generate 32-bit supplementary ppc64 .deb
  Build: Fix float test errors with Xcode 14.2/Arm
  AltiVec: Disable/Fix some strict compiler warnings
  Neon: Disable some strict compiler warnings
  Build: Make Mac packaging architecture-agnostic
  Exclude more code if !(C|D)_LOSSLESS_SUPPORTED
  Fix OSS-Fuzz decompress_yuv fuzzer MSan failure
  TJ doc: Density params require YCbCr or grayscale
  Allow disabling prog/opt/lossless if prev. enabled
  GitHub: Use macos-13 runner image w/ Xcode 14.2
  LICENSE.md: Update copyright year
  ChangeLog: Document accidental fix from 9983840e
  tj3Set(): Allow TJPARAM_LOSSLESSPT vals from 0..15
  Build: Support LLVM/Windows
  tj3Transform: Don't calc dst subsamp unless needed
  Fuzz: Calc. xformed buf size based on dst. subsamp
  TJ: Calc. xformed buf sizes based on dst. subsamp
  Minor TurboJPEG doc tweaks
  turbojpeg.c: Fix -Wsign-compare compiler warning
  ...
2025-01-03 09:57:35 +00:00
Kornel
c6d33b6d69 Merge commit '15274b901acb75d6d2433e8578f3cfbc6f4f5fd9' into mozjpeg
* commit '15274b901acb75d6d2433e8578f3cfbc6f4f5fd9': (98 commits)
  AppVeyor: Use SignPath release cert/only sign tags
  xform fuzz: Use only xform opts to set entropy alg
  jchuff.c: Test for out-of-range coefficients
  turbojpeg.h: Make customFilter() proto match doc
  ChangeLog.md: Fix typo
  djpeg: Fix -map option with 12-bit data precision
  Disallow color quantization with lossless decomp
  tj3Transform: Calc dst buf size from xformed dims
  README.md: Include link to project home page
  AppVeyor: Only add installers to zip file
  AppVeyor: Integrate with SignPath.io
  Fix build warnings/errs w/ -DNO_GETENV/-DNO_PUTENV
  GitHub: Fix x32 build
  Bump version to 3.0.0
  tjexample.c: Prevent integer overflow
  Disallow merged upsampling with lossless decomp
  SECURITY.md: Wordsmithing and clarifications
  GitHub: Add security policy
  ChangeLog.md: List CVE ID fixed by 9f756bc6
  jpeg_crop_scanline: Fix calc w/sclg + 2x4,4x2 samp
  ...
2024-12-23 01:25:43 +00:00
Kornel
d04cff3d6c Normalize whitespace and other merge details 2024-12-23 00:18:20 +00:00
DRC
f23981b0aa Build: Make Mac packaging architecture-agnostic
Rename the ARMV8_BUILD CMake variable to SECONDARY_BUILD, and modify the
makemacpkg script so that it allows any architecture in a primary or
secondary build.  The idea is that Apple Silicon users can package an
arm64 primary build and a secondary x86_64 build, and Intel users can
package an x86_64 primary build and a secondary arm64 build, using the
same procedure.

Also simplify the iOS build instructions, using the
CMAKE_OSX_ARCHITECTURES variable rather than a toolchain.
2024-12-11 17:19:01 -05:00
DRC
eb75363004 Update URLs
- Eliminate unnecessary "www."
- Use HTTPS.
- Update Java, MSYS, tdm-gcc, and NSIS URLs.
- Update URL and title of Agner Fog's assembly language optimization
  manual.
- Remove extraneous information about MASM and Borland Turbo Assembler
  and outdated NASM URLs from the x86 assembly headers, and mention
  Yasm.
2024-08-31 16:50:08 -04:00
DRC
3202feb08a x86-64 SIMD: Support CET if C compiler enables it
- Detect at configure time, via the __CET__ C preprocessor macro,
  whether the C compiler will include either indirect branch tracking
  (IBT) or shadow stack support, and define a NASM macro (__CET__) if
  so.

- Modify the x86-64 SIMD code so that it includes appropriate endbr64
  instructions (to support IBT) and an appropriate .note.gnu.property
  section (to support both IBT and shadow stack) when __CET__ is
  defined.

Closes #350
2024-02-29 16:37:30 -05:00
DRC
5a2353c2da GNUInstallDirs.cmake: Various improvements
- Integrate
  c07bba2730 (diff-1e2deb5301e9481203102fcddd1b2d0d2bf0ddc1cbb445c7f4b6414a3b869ce8)
  so that the default man directory is <CMAKE_INSTALL_PREFIX>/share/man
  on FreeBSD systems.

- For good measure, integrate
  f835f189ae
  so that the default info directory is
  <CMAKE_INSTALL_PREFIX>/share/info on FreeBSD systems, even though we
  don't use that directory.

- Automatically set the CMake variable type to PATH for any
  user-specified CMAKE_INSTALL_*DIR variables.

Addresses concerns raised in #326, #346, #648

Closes #648
2024-01-22 14:15:02 -05:00
Kornel
af265e7562 Merge tag '2.1.5'
* tag '2.1.5': (41 commits)
  BUILDING.md: Specify install prefix for MinGW/Un*x
  Java: Guard against int overflow in size methods
  turbojpeg.c: Fix UBSan warning
  tjPlane*(): Guard against int overflow
  Java doc: TJ.pixelSize --> TJ.getPixelSize()
  TJBench: Unset TJ*OPT_CROP when disabling tiling
  TJExample: Remove "underlying codec" references
  GitHub: Update to actions/checkout@v3
  TJBench: Set TJ*OPT_PROGRESSIVE with -progressive
  TJBench/Java: Fix parsing of quality ranges
  TJBench: Strictly check all non-boolean arguments
  TurboJPEG: More documentation improvements
  TJDecompressor.java: Exception message tweak
  12-bit: Set alpha channel to 4095 rather than 255
  TJDecompressor.java: "YUV" = "planar YUV"
  Java: Don't allow int overflow in buf size methods
  tjDecompressToYUV2: Use scaled dims for plane calc
  TurboJPEG: Numerous documentation improvements
  TurboJPEG: Don't use backward compatibility macros
  TurboJPEG: Ensure 'pad' arg is a power of 2
  ...
2023-02-03 20:54:24 +00:00
DRC
6c5caf30e2 Merge branch 'main' into dev 2023-01-27 18:30:11 -06:00
DRC
3b19db4e6e BUILDING.md: Specify install prefix for MinGW/Un*x
The default install prefix when building under MinGW is chosen based on
the needs of the official build system, which uses MSYS2 to generate
Windows installer packages that install under c:\libjpeg-turbo-gcc[64].
However, attempting to configure the build with that install prefix on
a Un*x machine causes a CMake error.

Fixes #641
2023-01-27 18:24:41 -06:00
DRC
0f047a5747 Merge branch 'main' into dev 2022-11-30 18:45:50 -06:00
DRC
7f2eb09d6e BUILDING.md: Add Arm64 iOS sim build instructions
Unfortunately, iOS builds cannot be used with the iOS simulator on Macs
with Apple silicon CPUs.  Even more unfortunately, universal binaries
can only have one slice for each CPU architecture, so it would not be
possible to add a dedicated Arm64 iOS simulator slice to the existing
libjpeg-turbo iOS binaries.  (It would be necessary to release a
separate package solely for the iOS simulator.)  Because the Arm Neon
SIMD extensions for libjpeg-turbo now use compiler intrinsics when
building with Xcode, it is easy to build libjpeg-turbo from source when
targeting Arm64-based Apple platforms.  Thus, for the moment, I have
chosen to document how to avoid the pothole rather than to fill it in.
2022-11-30 18:44:45 -06:00
DRC
6c2bc901e2 Don't allow disabling in-memory src/dest managers
By default, libjpeg-turbo 1.3.x and later have enabled the in-memory
source/destination manager functions from libjpeg v8 when emulating the
libjpeg v6b or v7 API/ABI, which has allowed operating system
distributors to provide those functions without adopting the
backward-incompatible libjpeg v8 API/ABI.

Prior to libjpeg-turbo 1.5.x, it made sense to allow users to disable
the in-memory source/destination manager functions at build time and
thus retain both backward and forward API/ABI compatibility relative to
libjpeg v6b or v7.  Since then, however, we have introduced several new
libjpeg API functions that break forward API/ABI compatibility, so it no
longer makes sense to allow the in-memory source/destination managers to
be disabled.  libjpeg-turbo only claims to be
backward-API/ABI-compatible, i.e. to allow applications built against
libjpeg or an older version of libjpeg-turbo to work properly with the
current version of libjpeg-turbo.
2022-11-03 15:22:19 -05:00
DRC
2cad2169ae BUILDING.md: Acknowledge RHEL 9 2022-09-12 21:54:35 -05:00
Kornel
fd56921259 Merge commit '8162eddf041e0be26f5c671bb6528723c55fed9d'
* commit '8162eddf041e0be26f5c671bb6528723c55fed9d': (24 commits)
  Fix issues w/ partial img decompr + buf img mode
  Re-fix buf img mode decompr err w/short prog JPEGs
  jdcoefct.c: Fix signed/unsigned mismatch VC++ wrng
  Fix buf image mode decompr err w/ short prog JPEGs
  PowerPC: Detect AltiVec support on OS X
  tjDecompressHeader3(): Accept tables-only streams
  Fix build if UPSAMPLE_MERGING_SUPPORTED undefined
  Build: Don't enable Loongson MMI with MIPS R6+
  MinGW: Fix str*casecmp() macro redef. warning
  OSS-Fuzz: '.' --> '_' in fuzzer suffix
  Don't install libturbojpeg.pc if WITH_TURBOJPEG=0
  Fix non-SIMD alignment if void* bigger than double
  OSS-Fuzz: Allow fuzzer suffix to be specified
  CI: Un-integrate CIFuzz
  BUILDING.md: Generify PowerTools repo advice
  Build: Don't set DEFAULT_FLOATTEST for x86 MSVC
  Build/Win: Fix CMake warning when WITH_TURBOJPEG=0
  Win: Fix build with Visual Studio 2010
  Link Sponsor button to GitHub Sponsors ...
  example.txt: Fix a typo
  ...
2022-08-15 02:46:09 +01:00
Kornel
5e797fa699 Merge tag '2.1.3' into master-moz
* tag '2.1.3': (56 commits)
  Neon/AArch64: Explicitly unroll quant loop w/Clang
  Neon/AArch64: Fix/suppress UBSan warnings
  Neon/AArch64: Accelerate Huffman encoding
  AppVeyor: Test strict MSVC compiler warnings
  Eliminate incompatible pointer type warnings
  MSVC: Eliminate int conversion warnings (C4244)
  MSVC: Eliminate C4996 warnings in API libs
  BUILDING.md: Clarify that Ninja works with Windows
  BUILDING.md: Remove NASM RPM rebuild instructions
  BUILDING.md: Document NASM/Yasm path variables
  "YASM" = "Yasm"
  Build: Fix Neon capability detection w/ MSVC
  Ensure that strncpy() dest strings are terminated
  Eliminate unnecessary JFREAD()/JFWRITE() macros
  Build: Embed version/API/(C) info in MSVC DLLs
  Fix segv w/ h2v2 merged upsamp, jpeg_crop_scanline
  TJBench: Remove innocuous always-true condition
  GitHub Actions: Specify Catalina for macOS build
  Fix -Wpedantic compiler warnings
  Eliminate non-ANSI C compatibility macros
  ...
2022-05-23 16:04:06 +01:00
DRC
df3c3dcb9b BUILDING.md: Generify PowerTools repo advice
This advice applies to CentOS Stream as well as to popular CentOS 8
replacements, such as Rocky Linux and AlmaLinux.
2022-03-31 10:28:17 -05:00
DRC
0565548191 BUILDING.md: Mention sub-project best practices
People keep trying to include libjpeg-turbo into downstream CMake-based
build systems by way of the add_subdirectory() function and requesting
upstream support when something inevitably breaks.

(Refer to: #122, #173, #176, #202, #241, #349, #353, #412, #504,
a3d4aadd0d (commitcomment-67575889)).

libjpeg-turbo has never supported that method of sub-project
integration, because doing so would require that we (minimally):

1. avoid using certain CMake variables, such as CMAKE_SOURCE_DIR,
   CMAKE_BINARY_DIR, and CMAKE_PROJECT_NAME;
2. avoid using implicit include directories and relative paths;
3. provide a way to optionally skip the installation of libjpeg-turbo
   components in response to 'make install';
4. provide a way to optionally postfix target names, to avoid namespace
   conflicts;
5. restructure the top-level CMakeLists.txt so that it properly sets
   the PROJECT_VERSION variable; and
6. design automated CI tests to ensure that new commits don't break
   any of the above.

Even if we did all of that, issues would still arise, because it is
impossible for one upstream build system to anticipate the widely
varying needs of every downstream build system.  That's why the CMake
ExternalProject_Add() function exists, and it is my sincere hope that
adding a blurb to BUILDING.md mentioning the need to use that function
will head off future GitHub issues on this topic.  If not, then I can at
least post a link to this commit and the blurb and avoid doing the same
song and dance over and over again.
2022-02-28 22:27:58 -06:00
DRC
ab6cae6f3b BUILDING.md: Clarify that Ninja works with Windows 2022-02-22 10:23:19 -06:00
DRC
3ccb6ead23 BUILDING.md: Remove NASM RPM rebuild instructions
All currently supported Linux platforms now provide a recent enough
version of either NASM or Yasm.
2022-02-11 10:05:18 -06:00
DRC
6441ad0f83 BUILDING.md: Document NASM/Yasm path variables
This was an oversight from the CMake build system overhaul in
libjpeg-turbo 2.0 (6abd39160c).

Closes #580
2022-02-11 10:02:28 -06:00
DRC
6d2d6d3baf "YASM" = "Yasm"
The assembler name was initially spelled "YASM", but it has been "Yasm"
for the entirety of libjpeg-turbo's existence.
2022-02-11 09:34:01 -06:00
tasty0tomato
323469818c Add building libpng in Windows 2021-06-22 15:47:29 +01:00
Kornel
886ddb1786 Merge commit '8a2cad020171184a49fa8696df0b9e267f1cf2f6'
* commit '8a2cad020171184a49fa8696df0b9e267f1cf2f6': (99 commits)
  Build: Handle CMAKE_OSX_ARCHITECTURES=(i386|ppc)
  Add Sponsor button for GitHub repository
  Build: Support CMAKE_OSX_ARCHITECTURES
  cjpeg: Fix FPE when compressing 0-width GIF
  Fix build with Visual C++ and /std:c11 or /std:c17
  Neon: Fix Huffman enc. error w/Visual Studio+Clang
  Use CLZ compiler intrinsic for Windows/Arm builds
  Build: Use correct SIMD exts w/VStudio IDE + Arm64
  jcphuff.c: Fix compiler warning with clang-cl
  Migrate from Travis CI to GitHub Actions
  tjexample.c: Fix mem leak if tjTransform() fails
  Build: Officially support Ninja
  decompress_smooth_data(): Fix another uninit. read
  LICENSE.md: Remove trailing whitespace
  Build: Test for correct AArch32 RPM/DEBARCH value
  LICENSE.md: Formatting tweak
  Fix uninitialized read in decompress_smooth_data()
  Fix buffer overrun with certain narrow prog JPEGs
  Bump revision to 2.0.91 for post-beta fixes
  Travis: Use Docker tag that matches Git branch
  ...
2021-02-26 21:30:09 +00:00
Kornel
fe0e3c7e88 Merge commit '10ba6ed3365615ed5c2995fe2d240cb2d5000173'
* commit '10ba6ed3365615ed5c2995fe2d240cb2d5000173': (32 commits)
  Travis: Install MacPorts without using macports-ci
  Build: Set FLOATTEST more intelligently
  BUILDING.md: Use min. iOS v8 in iOS Armv8 example
  Fix build if WITH_12BIT==1 && WITH_JPEG(7|8)==1
  Travis: Combine PPC/Arm tests with jpeg-7/8 tests
  Build: Fix test failures w/ Arm Neon SIMD exts
  Travis: Regression-test Armv8 and PPC SIMD exts
  Demote "fast" [I]DCT algorithms to legacy status
  jpegtran.c: "subarea" = "region"
  jpegtran.1: Minor formatting tweak
  transupp.c: Code formatting tweaks
  cdjpeg.h: Remove unused function stub
  Consistify formatting to simplify checkstyle
  README.ijg: Update URLs; remove Usenet info
  jversion.h: Update copyrights
  Build: Improve Arm 32-bit cross-comp./packaging
  "ARM"="Arm", "NEON"="Neon"
  Build: Fix permissions
  ChangeLog: Fix minor formatting issue
  ChangeLog.md: jpeg_crop_scanline(), not scanlines
  ...
2021-01-22 16:03:54 +00:00
DRC
1388ad6757 Build: Officially support Ninja 2020-12-08 21:25:47 -06:00
DRC
0ba70b6a13 Build: Support macOS Armv8/x86-64 univ. binaries
- Rename IOS_ARMV8_BUILD to ARMV8_BUILD.
- Rename install_ios() to install_subbuild() in makemacpkg.
- Wordsmith the build instructions accordingly.
- Use xcode12.2 image in Travis CI.
2020-11-18 17:40:44 -06:00
DRC
f7a10a61e3 Build: "OS X"/"OSX" = "macOS"/"MACOS"
There are no supported versions of "OS X" anymore.  The operating system
has been named "macOS" since 10.12 Sierra, which was released four years
ago.
2020-11-17 13:53:33 -06:00
DRC
8f8305981b Merge branch 'master' into dev 2020-11-13 15:21:26 -06:00
DRC
42f7c78fe3 BUILDING.md: Use min. iOS v8 in iOS Armv8 example
This is necessary in order to enable thread-local storage.
2020-11-13 15:18:35 -06:00
DRC
33859880e9 Neon: Auto-detect compiler intrinsics completeness
This allows the Neon intrinsics code to be built successfully (albeit
likely with reduced run-time performance) with Xcode 5.0-6.2
(iOS/AArch64) and Android NDK < r19 (AArch32).  Note that Xcode 5.0-6.2
will not build the Armv8 GAS code without gas-preprocessor.pl, and no
version of Xcode will build the Armv7 GAS code without
gas-preprocessor.pl, so we always use the full Neon intrinsics
implementation by default with macOS and iOS builds.

Auto-detecting the completeness of the compiler's set of Neon intrinsics
also allows us to more intelligently set the default value of
NEON_INTRINSICS, based on the values of HAVE_VLD1*.  This is a
reasonable, albeit imperfect, proxy for whether a compiler has a full
and optimal set of Neon intrinsics.  Specific notes:

  - 64-bit RGB-to-YCbCr color conversion
    does not use any of the intrinsics in question, regresses with GCC
  - 64-bit accurate integer forward DCT
    uses vld1_s16_x3(), regresses with GCC
  - 64-bit Huffman encoding
    uses vld1q_u8_x4(), regresses with GCC
  - 64-bit YCbCr-to-RGB color conversion
    does not use any of the intrinsics in question, regresses with GCC
  - 64-bit accurate integer inverse DCT
    uses vld1_s16_x3(), regresses with GCC
  - 64-bit 4x4 inverse DCT
    uses vld1_s16_x3().  I did not test this algorithm in isolation, so
    it may in fact regress with GCC, but the regression may be hidden by
    the speedup from the new SIMD-accelerated upsampling algorithms.

  - 32-bit RGB-to-YCbCr color conversion:
    uses vld1_u16_x2(), regresses with GCC
  - 32-bit accurate integer forward DCT
    uses vld1_s16_x3(), regression irrelevant because there was no
    previous implementation
  - 32-bit accurate integer inverse DCT
    uses vld1_s16_x3(), regresses with GCC
  - 32-bit fast integer inverse DCT
    does not use any of the intrinsics in question, regresses with GCC
  - 32-bit 4x4 inverse DCT
    uses vld1_s16_x3().  I did not test this algorithm in isolation, so
    it may in fact regress with GCC, but the regression may be hidden by
    the speedup from the new SIMD-accelerated upsampling algorithms.

Presumably when GCC includes a full and optimal set of Neon intrinsics,
the HAVE_VLD1* tests will pass, and the full Neon intrinsics
implementation will be enabled automatically.
2020-11-13 15:16:34 -06:00
DRC
bbd8089297 Neon: Finalize intrinsics implementation
- Remove gas-preprocessor.pl.  None of the compilers that can build the
  new intrinsics implementation require gas-preprocessor.pl (tested
  with Xcode and with Clang 3.9+ for Linux.)
- Document that Xcode 6.3.x or later is now required for iOS builds
  (older versions of Xcode do not have a full set of Neon intrinsics.)
- Add a change log entry.
- Do not enable the ASM CMake language unless NEON_INTRINSICS is false.
- Add a Clang/Arm64 test to .travis.yml in order to test the new
  intrinsics implementation.

Closes #455
2020-11-10 19:58:28 -06:00
DRC
59352195b2 Merge branch 'master' into dev 2020-10-19 21:17:46 -05:00
DRC
1ed312eab6 "ARM"="Arm", "NEON"="Neon"
Refer to:
https://www.arm.com/company/policies/trademarks/arm-trademark-list/arm-trademark
https://www.arm.com/company/policies/trademarks/arm-trademark-list/neon-trademark

NOTE: These changes are only applied to change log entries for 2.0.x and
later, since the change log is a historical record and Arm's new
trademark policy did not go into effect until late 2017.
2020-10-15 17:47:31 -05:00
DRC
c77783ed41 BUILDING.md: Undocument 32-bit Mac build/packaging
(oversight from previous commit)
2020-06-25 21:28:33 -05:00
DRC
b797f70012 Build: Eliminate Cygwin packaging support
We haven't provided official Cygwin builds since 1.4.x, since Cygwin
now supplies its own libjpeg-turbo packages (although they apparently
haven't been updated past 1.5.3.)
2020-06-25 19:05:45 -05:00
Chan, Danny
6d95c51adf Fix markdown format 2020-03-11 14:31:37 +00:00
NancyLi1013
5ea5482872 Add vcpkg installation instructions (#353)
* Add vcpkg installation instructions
2020-02-26 10:51:25 +00:00
DRC
9a2cf32317 Build: Enable separate iOS pkg/DMG w/ sim support
Refer to #406
2020-02-11 13:56:12 -06:00
DRC
ada6ea5105 BUILDING.md: Update Visual C++ recommendations 2020-01-16 20:52:15 -06:00
DRC
cbf0fcc8b7 i386 SSE2 Huffman: Fix pointer arithmetic issue
Splitting the pointer arithmetic in GET_SYM() into a separate add and
sub instruction was an attempt to work around an error ("invalid operand
type") that occurred when assembling the file with NASM.  However, this
created a link error on macOS ("ld: illegal text-relocation to
'_jconst_huff_encode_one_block' in
simd/CMakeFiles/simd.dir/i386/jchuff-sse2.asm.o from
'_jsimd_huff_encode_one_block_sse2' in
simd/CMakeFiles/simd.dir/i386/jchuff-sse2.asm.o for architecture i386")
and also changed the alignment of the code in ways that might have
affected the previous benchmark results (which took a great deal of time
to obtain.)  Ultimately, the path of least resistance is just to
require NASM 2.13 or later.
2019-11-05 15:56:28 -06:00
DRC
bbedb4b564 Merge branch 'master' into dev 2019-11-05 15:43:21 -06:00
DRC
cf54623b08 Mac: Support hiding SIMD fct symbols w/ NASM 2.14+
(NASM 2.14+ now supports the private_extern section directive, which was
previously only available with YASM.)
2019-11-05 15:41:59 -06:00
DRC
2ae2bd66b4 Remove support for Apple's Java implementation
(AKA "Java for OS X systems.")  This implementation of Java 1.6 is long
obsolete and not supported on any version of macOS past High Sierra.
Oracle no longer provides a 32-bit JVM on macOS, so it is no longer
necessary to provide a 32-bit version of the TurboJPEG Java wrapper on
macOS.
2019-10-04 16:31:46 -05:00
DRC
b7523059c1 Merge branch 'master' into dev 2019-10-04 15:53:30 -05:00
DRC
ec4cacc16e BUILDING.md: Document need for CRB/PowerTools repo
NASM and YASM are located in this non-default repository on
(respectively) RHEL and CentOS.
2019-10-02 16:42:03 -05:00
DRC
c055c88057 Discontinue support for 32-bit iOS builds 2019-05-09 20:36:51 -05:00
DRC
5308c1a03b BUILDING.md: Update/simplify Android build instr.
Use the android.toolchain.cmake toolchain file in the NDK (v13b or
later), since this toolchain file generally takes care of setting the
approprate compiler flags and dealing with the differences between
GCC and Clang.  Our custom Android build procedure did not work with
Clang-based NDK toolchains, which meant that it could not be made to
work with NDK v18b or later.

Fixes #309
2019-01-22 12:20:26 -06:00
DRC
c1f07a9fc4 BUILDING.md: Correct/update Java information
- CMake 3.10.x or later must be used with JDK 11, or an error
  ("regex not supported") will occur when CMake tries to parse the Java
  version number.
- The JDK is no longer available at java.com.
2018-09-21 15:17:27 -05:00