OS X: could not -Doptimize=-g.

[perl5.git] / hints / darwin.sh

diff --git a/hints/darwin.sh b/hints/darwin.sh
index fd61e42..5b8f38d 100644 (file)
--- a/hints/darwin.sh
+++ b/hints/darwin.sh
@@ -1,26 +1,45 @@
 ##
 # Darwin (Mac OS) hints
-# Wilfredo Sanchez <wsanchez@apple.com>
+# Wilfredo Sanchez <wsanchez@wsanchez.net>
 ##
 
 ##
 # Paths
 ##
 
+# Configure hasn't figured out the version number yet.  Bummer.
+perl_revision=`awk '/define[   ]+PERL_REVISION/ {print $3}' $src/patchlevel.h`
+perl_version=`awk '/define[    ]+PERL_VERSION/ {print $3}' $src/patchlevel.h`
+perl_subversion=`awk '/define[         ]+PERL_SUBVERSION/ {print $3}' $src/patchlevel.h`
+version="${perl_revision}.${perl_version}.${perl_subversion}"
+
 # BSD paths
-prefix='/usr';
-siteprefix='/usr/local';
-vendorprefix='/usr/local'; usevendorprefix='define';
+case "$prefix" in
+  '')
+    # Default install; use non-system directories
+    prefix='/usr/local'; # Built-in perl uses /usr
+    siteprefix='/usr/local';
+    vendorprefix='/usr'; usevendorprefix='define';
+
+    # Where to put modules.
+    sitelib="/Library/Perl/${version}"; # FIXME: Want "/Network/Perl/${version}" also
+    vendorlib="/System/Library/Perl/${version}"; # Apple-supplied modules
+    ;;
+
+  '/usr')
+    # We are building/replacing the built-in perl
+    siteprefix='/usr/local';
+    vendorprefix='/usr/local'; usevendorprefix='define';
 
-# 4BSD uses /usr/share/man, not /usr/man.
-# Don't put man pages in /usr/lib; that's goofy.
-man1dir='/usr/share/man/man1';
-man3dir='/usr/share/man/man3';
+    # Where to put modules.
+    sitelib="/Library/Perl/${version}"; # FIXME: Want "/Network/Perl/${version}" also
+    vendorlib="/System/Library/Perl/${version}"; # Apple-supplied modules
+    ;;
+esac
 
-# Where to put modules.
-privlib='/System/Library/Perl';
-sitelib='/Local/Library/Perl';
-vendorlib='/Network/Library/Perl';
+# 4BSD uses ${prefix}/share/man, not ${prefix}/man.
+man1dir="${prefix}/share/man/man1";
+man3dir="${prefix}/share/man/man3";
 
 ##
 # Tool chain settings
@@ -32,14 +51,64 @@ archname='darwin';
 # nm works.
 usenm='true';
 
-# Libc is in libsystem.
-libc='/System/Library/Frameworks/System.framework/System';
+case "$optimize" in
+'')
+#    Optimizing for size also mean less resident memory usage on the part
+# of Perl.  Apple asserts that this is a more important optimization than
+# saving on CPU cycles.  Given that memory speed has not increased at
+# pace with CPU speed over time (on any platform), this is probably a
+# reasonable assertion.
+if [ -z "${optimize}" ]; then
+  case "`${cc:-gcc} -v 2>&1`" in
+    *"gcc version 3."*) optimize='-Os' ;;
+    *) optimize='-O3' ;;
+  esac
+else
+  optimize='-O3'
+fi
+;;
+esac
+
+# -pipe: makes compilation go faster.
+# -fno-common because common symbols are not allowed in MH_DYLIB
+ccflags="${ccflags} -pipe -fno-common"
+
+# At least on Darwin 1.3.x:
+#
+# # define INT32_MIN -2147483648
+# int main () {
+#  double a = INT32_MIN;
+#  printf ("INT32_MIN=%g\n", a);
+#  return 0;
+# }
+# will output:
+# INT32_MIN=2.14748e+09
+# Note that the INT32_MIN has become positive.
+# INT32_MIN is set in /usr/include/stdint.h by:
+# #define INT32_MIN        -2147483648
+# which seems to break the gcc.  Defining INT32_MIN as (-2147483647-1)
+# seems to work.  INT64_MIN seems to be similarly broken.
+# -- Nicholas Clark, Ken Williams, and Edward Moy
+#
+# This seems to have been fixed since at least Mac OS X 10.1.3,
+# stdint.h defining INT32_MIN as (-INT32_MAX-1)
+# -- Edward Moy
+#
+case "$(grep '^#define INT32_MIN' /usr/include/stdint.h)" in
+  *-2147483648) ccflags="${ccflags} -DINT32_MIN_BROKEN -DINT64_MIN_BROKEN" ;;
+esac
 
-# Optimize.
-optimize='-O3';
+# Avoid Apple's cpp precompiler, better for extensions
+cppflags="${cppflags} -no-cpp-precomp"
 
-# We have a prototype for telldir.
-ccflags="${ccflags} -pipe -fno-common -DHAS_TELLDIR_PROTOTYPE";
+# This is necessary because perl's build system doesn't
+# apply cppflags to cc compile lines as it should.
+ccflags="${ccflags} ${cppflags}"
+
+# Known optimizer problems.
+case "`cc -v 2>&1`" in
+  *"3.1 20020105"*) toke_cflags='optimize=""' ;;
+esac
 
 # Shared library extension is .dylib.
 # Bundle extension is .bundle.
@@ -47,7 +116,12 @@ ld='cc';
 so='dylib';
 dlext='bundle';
 dlsrc='dl_dyld.xs'; usedl='define';
-cccdlflags='';
+cccdlflags=' '; # space, not empty, because otherwise we get -fpic
+# Perl bundles do not expect two-level namespace, added in Darwin 1.4.
+case "$osvers" in
+  1.[0-3].*) ;;
+  *) ldflags="${ldflags} -flat_namespace" ;;
+esac
 lddlflags="${ldflags} -bundle -undefined suppress";
 ldlibpthname='DYLD_LIBRARY_PATH';
 useshrplib='true';
@@ -61,3 +135,39 @@ usevfork='true';
 
 # malloc works
 usemymalloc='n';
+
+# Locales aren't feeling well.
+LC_ALL=C; export LC_ALL;
+LANG=C; export LANG;
+
+#
+# The libraries are not threadsafe as of OS X 10.1.
+#
+# Fix when Apple fixes libc.
+#
+case "$usethreads$useithreads" in
+  *define*)
+  case "$osvers" in
+    [12345].*)     cat <<EOM >&4
+
+
+
+*** Warning, there might be problems with your libraries with
+*** regards to threading.  The test ext/threads/t/libc.t is likely
+*** to fail.
+
+EOM
+    ;;
+    *) usereentrant='define';;
+  esac
+
+esac
+
+##
+# Build process
+##
+
+# Case-insensitive filesystems don't get along with Makefile and
+# makefile in the same place.  Since Darwin uses GNU make, this dodges
+# the problem.
+firstmakefile=GNUmakefile;