From df2aecbf61a157b8a6a865cb2d946e65b887b774 Mon Sep 17 00:00:00 2001 From: Matthias Klose Date: Thu, 15 Mar 2012 22:19:28 +0100 Subject: [PATCH] - Issue #14327: Call AC_CANONICAL_HOST in configure.ac and check in config.{guess,sub}. Don't use uname calls for cross builds. --- Misc/NEWS | 2 +- configure | 42 ++++++++++++++++++++++++++++-------------- configure.ac | 40 ++++++++++++++++++++++++++++------------ 3 files changed, 57 insertions(+), 27 deletions(-) diff --git a/Misc/NEWS b/Misc/NEWS index f746543e2e0..1c4c2155041 100644 --- a/Misc/NEWS +++ b/Misc/NEWS @@ -116,7 +116,7 @@ Build - Issue #14324: Fix configure tests for cross builds. - Issue #14327: Call AC_CANONICAL_HOST in configure.ac and check in - config.{guess,sub}. + config.{guess,sub}. Don't use uname calls for cross builds. Extension Modules ----------------- diff --git a/configure b/configure index a1d8612fff8..be7684a89dc 100755 --- a/configure +++ b/configure @@ -3150,6 +3150,25 @@ fi $as_echo_n "checking MACHDEP... " >&6; } if test -z "$MACHDEP" then + # avoid using uname for cross builds + if test "$cross_compiling" = yes; then + # ac_sys_system and ac_sys_release are only used for setting + # `define_xopen_source' in the case statement below. For the + # current supported cross builds, this macro is not adjusted. + case "$host" in + *-*-linux*) + ac_sys_system=Linux + ;; + *-*-cygwin*) + ac_sys_system=Cygwin + ;; + *) + # for now, limit cross builds to known configurations + MACHDEP="unknown" + as_fn_error $? "cross build not supported for $host" "$LINENO" 5 + esac + ac_sys_release= + else ac_sys_system=`uname -s` if test "$ac_sys_system" = "AIX" \ -o "$ac_sys_system" = "UnixWare" -o "$ac_sys_system" = "OpenUNIX"; then @@ -3157,19 +3176,20 @@ then else ac_sys_release=`uname -r` fi - ac_md_system=`echo $ac_sys_system | - tr -d '/ ' | tr '[A-Z]' '[a-z]'` - ac_md_release=`echo $ac_sys_release | - tr -d '/ ' | sed 's/^[A-Z]\.//' | sed 's/\..*//'` - MACHDEP="$ac_md_system$ac_md_release" + fi + ac_md_system=`echo $ac_sys_system | + tr -d '/ ' | tr '[A-Z]' '[a-z]'` + ac_md_release=`echo $ac_sys_release | + tr -d '/ ' | sed 's/^[A-Z]\.//' | sed 's/\..*//'` + MACHDEP="$ac_md_system$ac_md_release" - case $MACHDEP in + case $MACHDEP in linux*) MACHDEP="linux";; cygwin*) MACHDEP="cygwin";; darwin*) MACHDEP="darwin";; irix646) MACHDEP="irix6";; '') MACHDEP="unknown";; - esac + esac fi # Some systems cannot stand _XOPEN_SOURCE being defined at all; they @@ -3305,12 +3325,6 @@ $as_echo "$MACHDEP" >&6; } CONFIGURE_MACOSX_DEPLOYMENT_TARGET= EXPORT_MACOSX_DEPLOYMENT_TARGET='#' -{ $as_echo "$as_me:${as_lineno-$LINENO}: checking machine type as reported by uname -m" >&5 -$as_echo_n "checking machine type as reported by uname -m... " >&6; } -ac_sys_machine=`uname -m` -{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_sys_machine" >&5 -$as_echo "$ac_sys_machine" >&6; } - # checks for alternative programs # compiler flags are generated in two sets, BASECFLAGS and OPT. OPT is just @@ -5733,7 +5747,7 @@ $as_echo "$ac_cv_disable_unused_result_warning" >&6; } # if using gcc on alpha, use -mieee to get (near) full IEEE 754 # support. Without this, treatment of subnormals doesn't follow # the standard. - case $ac_sys_machine in + case $host in alpha*) BASECFLAGS="$BASECFLAGS -mieee" ;; diff --git a/configure.ac b/configure.ac index dd09dc52346..0ae50038877 100644 --- a/configure.ac +++ b/configure.ac @@ -292,6 +292,25 @@ AC_SUBST(MACHDEP) AC_MSG_CHECKING(MACHDEP) if test -z "$MACHDEP" then + # avoid using uname for cross builds + if test "$cross_compiling" = yes; then + # ac_sys_system and ac_sys_release are only used for setting + # `define_xopen_source' in the case statement below. For the + # current supported cross builds, this macro is not adjusted. + case "$host" in + *-*-linux*) + ac_sys_system=Linux + ;; + *-*-cygwin*) + ac_sys_system=Cygwin + ;; + *) + # for now, limit cross builds to known configurations + MACHDEP="unknown" + AC_MSG_ERROR([cross build not supported for $host]) + esac + ac_sys_release= + else ac_sys_system=`uname -s` if test "$ac_sys_system" = "AIX" \ -o "$ac_sys_system" = "UnixWare" -o "$ac_sys_system" = "OpenUNIX"; then @@ -299,19 +318,20 @@ then else ac_sys_release=`uname -r` fi - ac_md_system=`echo $ac_sys_system | - tr -d '[/ ]' | tr '[[A-Z]]' '[[a-z]]'` - ac_md_release=`echo $ac_sys_release | - tr -d '[/ ]' | sed 's/^[[A-Z]]\.//' | sed 's/\..*//'` - MACHDEP="$ac_md_system$ac_md_release" + fi + ac_md_system=`echo $ac_sys_system | + tr -d '[/ ]' | tr '[[A-Z]]' '[[a-z]]'` + ac_md_release=`echo $ac_sys_release | + tr -d '[/ ]' | sed 's/^[[A-Z]]\.//' | sed 's/\..*//'` + MACHDEP="$ac_md_system$ac_md_release" - case $MACHDEP in + case $MACHDEP in linux*) MACHDEP="linux";; cygwin*) MACHDEP="cygwin";; darwin*) MACHDEP="darwin";; irix646) MACHDEP="irix6";; '') MACHDEP="unknown";; - esac + esac fi # Some systems cannot stand _XOPEN_SOURCE being defined at all; they @@ -439,10 +459,6 @@ AC_SUBST(EXPORT_MACOSX_DEPLOYMENT_TARGET) CONFIGURE_MACOSX_DEPLOYMENT_TARGET= EXPORT_MACOSX_DEPLOYMENT_TARGET='#' -AC_MSG_CHECKING(machine type as reported by uname -m) -ac_sys_machine=`uname -m` -AC_MSG_RESULT($ac_sys_machine) - # checks for alternative programs # compiler flags are generated in two sets, BASECFLAGS and OPT. OPT is just @@ -1010,7 +1026,7 @@ yes) # if using gcc on alpha, use -mieee to get (near) full IEEE 754 # support. Without this, treatment of subnormals doesn't follow # the standard. - case $ac_sys_machine in + case $host in alpha*) BASECFLAGS="$BASECFLAGS -mieee" ;;