diff options
Diffstat (limited to 'configure.ac')
| -rw-r--r-- | configure.ac | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/configure.ac b/configure.ac index 9dceaabb6..9024d99c7 100644 --- a/configure.ac +++ b/configure.ac @@ -300,6 +300,54 @@ 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 # === # |