package/python/0009-Fix-python-config-for-cross-builds.patch

   1 From e5b0d225f4343e82791cb80e4e0c01a9b49eeff4 Mon Sep 17 00:00:00 2001
   2 From: Gustavo Zacarias <gustavo@zacarias.com.ar>
   3 Date: Tue, 7 Mar 2017 22:23:14 +0100
   4 Subject: [PATCH] Fix python-config for cross-builds
   5
   6 Add a backport of http://bugs.python.org/issue16235 so we can use
   7 python-config for cross builds.
   8
   9 This basically replaces the python version of python-config with a
  10 pure-shell version that's already preprocessed when installed and
  11 doesn't depend on the sysconfig import that usually leads to bad
  12 data/results.
  13
  14 Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
  15 ---
  16  Makefile.pre.in          |  13 +++---
  17  Misc/python-config.sh.in | 102 +++++++++++++++++++++++++++++++++++++++++++++++
  18  configure.ac             |   7 +++-
  19  3 files changed, 116 insertions(+), 6 deletions(-)
  20  create mode 100644 Misc/python-config.sh.in
  21
  22 diff --git a/Makefile.pre.in b/Makefile.pre.in
  23 index 33b994d..beb0837 100644
  24 --- a/Makefile.pre.in
  25 +++ b/Makefile.pre.in
  26 @@ -171,7 +171,7 @@ SRCDIRS=    @SRCDIRS@
  27  SUBDIRSTOO=    Include Lib Misc Demo
  28
  29  # Files and directories to be distributed
  30 -CONFIGFILES=   configure configure.ac acconfig.h pyconfig.h.in Makefile.pre.in
  31 +CONFIGFILES=   configure configure.ac acconfig.h pyconfig.h.in Makefile.pre.in Misc/python-config.sh
  32  DISTFILES=     README ChangeLog $(CONFIGFILES)
  33  DISTDIRS=      $(SUBDIRS) $(SUBDIRSTOO) Ext-dummy
  34  DIST=          $(DISTFILES) $(DISTDIRS)
  35 @@ -431,7 +431,7 @@ LIBRARY_OBJS=       \
  36
  37  # Default target
  38  all:           @DEF_MAKE_ALL_RULE@
  39 -build_all:     $(BUILDPYTHON) oldsharedmods sharedmods gdbhooks
  40 +build_all:     $(BUILDPYTHON) oldsharedmods sharedmods gdbhooks python-config
  41
  42  # Compile a binary with profile guided optimization.
  43  profile-opt:
  44 @@ -1179,10 +1179,12 @@ $(srcdir)/Lib/$(PLATDIR):
  45         fi; \
  46         cd $(srcdir)/Lib/$(PLATDIR); $(RUNSHARED) ./regen
  47
  48 -python-config: $(srcdir)/Misc/python-config.in
  49 +python-config: $(srcdir)/Misc/python-config.in Misc/python-config.sh
  50         # Substitution happens here, as the completely-expanded BINDIR
  51         # is not available in configure
  52 -       sed -e "s,@EXENAME@,$(BINDIR)/python$(VERSION)$(EXE)," < $(srcdir)/Misc/python-config.in >python-config
  53 +       sed -e "s,@EXENAME@,$(BINDIR)/python$(VERSION)$(EXE)," < $(srcdir)/Misc/python-config.in >python-config.py
  54 +       # Replace makefile compat. variable references with shell script compat. ones; $(VAR) -> ${VAR}
  55 +       sed -e 's,\$$(\([A-Za-z0-9_]*\)),\$$\{\1\},g' Misc/python-config.sh >python-config
  56
  57  # Install the include files
  58  INCLDIRSTOMAKE=$(INCLUDEDIR) $(CONFINCLUDEDIR) $(INCLUDEPY) $(CONFINCLUDEPY)
  59 @@ -1241,7 +1243,7 @@ libainstall:      all python-config
  60         $(INSTALL_SCRIPT) $(srcdir)/Modules/makesetup $(DESTDIR)$(LIBPL)/makesetup
  61         $(INSTALL_SCRIPT) $(srcdir)/install-sh $(DESTDIR)$(LIBPL)/install-sh
  62         $(INSTALL_SCRIPT) python-config $(DESTDIR)$(BINDIR)/python$(VERSION)-config
  63 -       rm python-config
  64 +       $(INSTALL_SCRIPT) python-config.py $(DESTDIR)$(LIBPL)/python-config.py
  65         @if [ -s Modules/python.exp -a \
  66                 "`echo $(MACHDEP) | sed 's/^\(...\).*/\1/'`" = "aix" ]; then \
  67                 echo; echo "Installing support files for building shared extension modules on AIX:"; \
  68 @@ -1426,6 +1428,7 @@ clobber: clean profile-removal
  69                 config.cache config.log pyconfig.h Modules/config.c
  70         -rm -rf build platform
  71         -rm -rf $(PYTHONFRAMEWORKDIR)
  72 +       -rm -f python-config.py python-config
  73
  74  # Make things extra clean, before making a distribution:
  75  # remove all generated files, even Makefile[.pre]
  76 diff --git a/Misc/python-config.sh.in b/Misc/python-config.sh.in
  77 new file mode 100644
  78 index 0000000..10db4c1
  79 --- /dev/null
  80 +++ b/Misc/python-config.sh.in
  81 @@ -0,0 +1,102 @@
  82 +#!/bin/sh
  83 +
  84 +exit_with_usage ()
  85 +{
  86 +       echo "Usage: $0 --prefix|--exec-prefix|--includes|--libs|--cflags|--ldflags|--extension-suffix|--help|--configdir"
  87 +       exit $1
  88 +}
  89 +
  90 +if [ "$1" = "" ] ; then
  91 +       exit_with_usage 1
  92 +fi
  93 +
  94 +# Returns the actual prefix where this script was installed to.
  95 +installed_prefix ()
  96 +{
  97 +       RESULT=$(dirname $(cd $(dirname "$1") && pwd -P))
  98 +       if which readlink >/dev/null 2>&1 ; then
  99 +       RESULT=$(readlink -f "$RESULT")
 100 +       fi
 101 +       echo $RESULT
 102 +}
 103 +
 104 +prefix_build="@prefix@"
 105 +prefix_real=$(installed_prefix "$0")
 106 +
 107 +# Use sed to fix paths from their built to locations to their installed to locations.
 108 +prefix=$(echo "$prefix_build" | sed "s#$prefix_build#$prefix_real#")
 109 +exec_prefix_build="@exec_prefix@"
 110 +exec_prefix=$(echo "$exec_prefix_build" | sed "s#$exec_prefix_build#$prefix_real#")
 111 +includedir=$(echo "@includedir@")
 112 +libdir=$(echo "@libdir@" | sed "s#$prefix_build#$prefix_real#")
 113 +CFLAGS=$(echo "@CFLAGS@" | sed "s#$prefix_build#$prefix_real#")
 114 +VERSION="@VERSION@"
 115 +LIBM="@LIBM@"
 116 +LIBC="@LIBC@"
 117 +SYSLIBS="$LIBM $LIBC"
 118 +LIBS="@LIBS@ $SYSLIBS -lpython${VERSION}"
 119 +BASECFLAGS="@BASECFLAGS@"
 120 +LDLIBRARY="@LDLIBRARY@"
 121 +LINKFORSHARED="@LINKFORSHARED@"
 122 +OPT="@OPT@"
 123 +PY_ENABLE_SHARED="@PY_ENABLE_SHARED@"
 124 +LDVERSION="@LDVERSION@"
 125 +LIBDEST=${prefix}/lib/python${VERSION}
 126 +LIBPL=$(echo "@LIBPL@" | sed "s#$prefix_build#$prefix_real#")
 127 +SO="@SO@"
 128 +PYTHONFRAMEWORK="@PYTHONFRAMEWORK@"
 129 +INCDIR="-I$includedir/python${VERSION}"
 130 +PLATINCDIR="-I$includedir/python${VERSION}"
 131 +
 132 +# Scan for --help or unknown argument.
 133 +for ARG in $*
 134 +do
 135 +       case $ARG in
 136 +       --help)
 137 +               exit_with_usage 0
 138 +       ;;
 139 +       --prefix|--exec-prefix|--includes|--libs|--cflags|--ldflags|--extension-suffix|--abiflags|--configdir)
 140 +       ;;
 141 +       *)
 142 +               exit_with_usage 1
 143 +       ;;
 144 +esac
 145 +done
 146 +
 147 +for ARG in "$@"
 148 +do
 149 +       case "$ARG" in
 150 +       --prefix)
 151 +               echo "$prefix"
 152 +       ;;
 153 +       --exec-prefix)
 154 +               echo "$exec_prefix"
 155 +       ;;
 156 +       --includes)
 157 +                echo "$INCDIR $PLATINCDIR"
 158 +       ;;
 159 +       --cflags)
 160 +               echo "$INCDIR $PLATINCDIR $BASECFLAGS $CFLAGS $OPT"
 161 +       ;;
 162 +       --libs)
 163 +               echo "$LIBS"
 164 +       ;;
 165 +       --ldflags)
 166 +               LINKFORSHAREDUSED=
 167 +               if [ -z "$PYTHONFRAMEWORK" ] ; then
 168 +                       LINKFORSHAREDUSED=$LINKFORSHARED
 169 +               fi
 170 +               LIBPLUSED=
 171 +               if [ "$PY_ENABLE_SHARED" = "0" ] ; then
 172 +                       LIBPLUSED="-L$LIBPL"
 173 +               fi
 174 +               echo "$LIBPLUSED -L$libdir $LIBS $LINKFORSHAREDUSED"
 175 +       ;;
 176 +       --extension-suffix)
 177 +               echo "$SO"
 178 +       ;;
 179 +       --configdir)
 180 +               echo "$LIBPL"
 181 +       ;;
 182 +esac
 183 +done
 184 diff --git a/configure.ac b/configure.ac
 185 index 5d4232f..183a903 100644
 186 --- a/configure.ac
 187 +++ b/configure.ac
 188 @@ -905,6 +905,7 @@ fi
 189
 190  # Other platforms follow
 191  if test $enable_shared = "yes"; then
 192 +  PY_ENABLE_SHARED=1
 193    AC_DEFINE(Py_ENABLE_SHARED, 1, [Defined if Python is built as a shared library.])
 194    case $ac_sys_system in
 195      BeOS*)
 196 @@ -965,6 +966,7 @@ if test $enable_shared = "yes"; then
 197
 198    esac
 199  else # shared is disabled
 200 +  PY_ENABLE_SHARED=0
 201    case $ac_sys_system in
 202      CYGWIN*)
 203            BLDLIBRARY='$(LIBRARY)'
 204 @@ -2096,6 +2098,9 @@ AC_SUBST(LDCXXSHARED)
 205  AC_SUBST(BLDSHARED)
 206  AC_SUBST(CCSHARED)
 207  AC_SUBST(LINKFORSHARED)
 208 +AC_SUBST(PY_ENABLE_SHARED)
 209 +LIBPL="${prefix}/lib/python${VERSION}/config"
 210 +AC_SUBST(LIBPL)
 211  # SO is the extension of shared libraries `(including the dot!)
 212  # -- usually .so, .sl on HP-UX, .dll on Cygwin
 213  AC_MSG_CHECKING(SO)
 214 @@ -4818,7 +4823,7 @@ AC_MSG_RESULT($ENSUREPIP)
 215  AC_SUBST(ENSUREPIP)
 216
 217  # generate output files
 218 -AC_CONFIG_FILES(Makefile.pre Modules/Setup.config Misc/python.pc)
 219 +AC_CONFIG_FILES(Makefile.pre Modules/Setup.config Misc/python.pc Misc/python-config.sh)
 220  AC_CONFIG_FILES([Modules/ld_so_aix], [chmod +x Modules/ld_so_aix])
 221  AC_OUTPUT
 222
 223 --
 224 2.7.4
 225