diff options
Diffstat (limited to 'libpng/configure.ac')
| -rw-r--r-- | libpng/configure.ac | 140 |
1 files changed, 136 insertions, 4 deletions
diff --git a/libpng/configure.ac b/libpng/configure.ac index 83183ab7a..e3cfafd6e 100644 --- a/libpng/configure.ac +++ b/libpng/configure.ac @@ -1,7 +1,7 @@ # configure.ac # Copyright (c) 2004-2016 Glenn Randers-Pehrson -# Last changed in libpng 1.6.25 [October 20, 2016] +# Last changed in libpng 1.6.25 [September 1, 2016] # This code is released under the libpng license. # For conditions of distribution and use, see the disclaimer @@ -25,7 +25,7 @@ AC_PREREQ([2.68]) dnl Version number stuff here: -AC_INIT([libpng],[1.6.26],[png-mng-implement@lists.sourceforge.net]) +AC_INIT([libpng],[1.6.34],[png-mng-implement@lists.sourceforge.net]) AC_CONFIG_MACRO_DIR([scripts]) # libpng does not follow GNU file name conventions (hence 'foreign') @@ -46,10 +46,10 @@ dnl automake, so the following is not necessary (and is not defined anyway): dnl AM_PREREQ([1.11.2]) dnl stop configure from automagically running automake -PNGLIB_VERSION=1.6.26 +PNGLIB_VERSION=1.6.34 PNGLIB_MAJOR=1 PNGLIB_MINOR=6 -PNGLIB_RELEASE=26 +PNGLIB_RELEASE=34 dnl End of version number stuff @@ -300,6 +300,55 @@ AM_CONDITIONAL([DO_INSTALL_LIBPNG_CONFIG], # HOST SPECIFIC OPTIONS # ===================== # +# DEFAULT +# ======= +# +AC_ARG_ENABLE([hardware-optimizations], + AS_HELP_STRING([[[--enable-hardware-optimizations]]], + [Enable hardware optimizations: =no/off, yes/on:]), + [case "$enableval" in + no|off) + # disable hardware optimization on all systems: + enable_arm_neon=no + AC_DEFINE([PNG_ARM_NEON_OPT], [0], + [Disable ARM_NEON optimizations]) + enable_mips_msa=no + AC_DEFINE([PNG_MIPS_MSA_OPT], [0], + [Disable MIPS_MSA optimizations]) + enable_powerpc_vsx=no + AC_DEFINE([PNG_POWERPC_VSX_OPT], [0], + [Disable POWERPC VSX optimizations]) + enable_intel_sse=no + AC_DEFINE([PNG_INTEL_SSE_OPT], [0], + [Disable INTEL_SSE optimizations]) + ;; + *) + # allow enabling hardware optimization on any system: + case "$host_cpu" in + arm*|aarch64*) + enable_arm_neon=yes + AC_DEFINE([PNG_ARM_NEON_OPT], [0], + [Enable ARM_NEON optimizations]) + ;; + mipsel*|mips64el*) + enable_mips_msa=yes + AC_DEFINE([PNG_MIPS_MSA_OPT], [0], + [Enable MIPS_MSA optimizations]) + ;; + i?86|x86_64) + enable_intel_sse=yes + AC_DEFINE([PNG_INTEL_SSE_OPT], [1], + [Enable Intel SSE optimizations]) + ;; + powerpc*|ppc64*) + enable_powerpc_vsx=yes + AC_DEFINE([PNG_POWERPC_VSX_OPT], [2], + [Enable POWERPC VSX optimizations]) + ;; + esac + ;; + esac]) + # ARM # === # @@ -391,6 +440,89 @@ AM_CONDITIONAL([PNG_MIPS_MSA], mipsel*|mips64el*) :;; esac]) +# INTEL +# ===== +# +# INTEL SSE (SIMD) support. + +AC_ARG_ENABLE([intel-sse], + AS_HELP_STRING([[[--enable-intel-sse]]], + [Enable Intel SSE optimizations: =no/off, yes/on:] + [no/off: disable the optimizations;] + [yes/on: enable the optimizations.] + [If not specified: determined by the compiler.]), + [case "$enableval" in + no|off) + # disable the default enabling: + AC_DEFINE([PNG_INTEL_SSE_OPT], [0], + [Disable Intel SSE optimizations]) + # Prevent inclusion of the assembler files below: + enable_intel_sse=no;; + yes|on) + AC_DEFINE([PNG_INTEL_SSE_OPT], [1], + [Enable Intel SSE optimizations]);; + *) + AC_MSG_ERROR([--enable-intel-sse=${enable_intel_sse}: invalid value]) + esac]) + +# Add Intel specific files to all builds where the host_cpu is Intel ('x86*') +# or where Intel optimizations were explicitly requested (this allows a +# fallback if a future host CPU does not match 'x86*') +AM_CONDITIONAL([PNG_INTEL_SSE], + [test "$enable_intel_sse" != 'no' && + case "$host_cpu" in + i?86|x86_64) :;; + *) test "$enable_intel_sse" != '';; + esac]) + +# PowerPC +# === +# +# PowerPC VSX (SIMD) support. + +AC_ARG_ENABLE([powerpc-vsx], +AS_HELP_STRING([[[--enable-powerpc-vsx]]], + [Enable POWERPC VSX optimizations: =no/off, check, api, yes/on:] + [no/off: disable the optimizations; check: use internal checking code] + [api: disable by default, enable by a call to png_set_option] + [yes/on: turn on unconditionally.] + [If not specified: determined by the compiler.]), + [case "$enableval" in + no|off) + # disable the default enabling on __ppc64__ systems: + AC_DEFINE([PNG_POWERPC_VSX_OPT], [0], + [Disable POWERPC VSX optimizations]) + # Prevent inclusion of the platform specific files below: + enable_powerpc_vsx=no;; + check) + AC_DEFINE([PNG_POWERPC_VSX_CHECK_SUPPORTED], [], + [Check for POWERPC VSX support at run-time]) + AC_MSG_WARN([--enable-powerpc-vsx Please check contrib/powerpc/README file] + [for the list of supported OSes.]);; + api) + AC_DEFINE([PNG_POWERPC_VSX_API_SUPPORTED], [], + [Turn on POWERPC VSX optimizations at run-time]);; + yes|on) + AC_DEFINE([PNG_POWERPC_VSX_OPT], [2], + [Enable POWERPC VSX optimizations]) + AC_MSG_WARN([--enable-powerpc-vsx: please specify 'check' or 'api', if] + [you want the optimizations unconditionally pass '-maltivec -mvsx'] + [or '-mcpu=power8'to the compiler.]);; + *) + AC_MSG_ERROR([--enable-powerpc-vsx=${enable_powerpc_vsx}: invalid value]) + esac]) + +# Add PowerPC specific files to all builds where the host_cpu is powerpc('powerpc*') or +# where POWERPC optimizations were explicitly requested (this allows a fallback if a +# future host CPU does not match 'powerpc*') + +AM_CONDITIONAL([PNG_POWERPC_VSX], + [test "$enable_powerpc_vsx" != 'no' && + case "$host_cpu" in + powerpc*|ppc64*) :;; + esac]) + + AC_MSG_NOTICE([[Extra options for compiler: $PNG_COPTS]]) # Config files, substituting as above |