Removed -mmacosx-version-min option.

auto/modules/perl

@@ -68,10 +68,6 @@ if /bin/sh -c "$NXT_PERL -MConfig -e 'print \"Perl version: \",
         # OS X system perl wants to link universal binaries
         NXT_PERL_LDOPTS=`echo $NXT_PERL_LDOPTS \
                          | sed -e 's/-arch i386//' -e 's/-arch x86_64//'`
-
-        # macosx-version-min is already defined for Darwin
-        NXT_PERL_LDOPTS=`echo $NXT_PERL_LDOPTS \
-                         | $NXT_PERL -pe 's/-mmacosx-version-min=\d+\.\d+//'`
     fi
 
     NXT_PERL_LIBS="-L ${NXT_PERL_INCPATH} ${NXT_PERL_LDOPTS}"

auto/os/conf

@@ -100,19 +100,10 @@ case "$NXT_SYSTEM" in
         # HFS+ volumes are caseless by default.
         nxt_have=NXT_HAVE_CASELESS_FILESYSTEM . auto/have
 
-        # MacOSX 10.6 (Snow Leopard) has deprecated ucontext(3).
-        # MacOSX 10.7 (Lion) has deprecated system OpenSSL.
-        # MAC_OS_X_VERSION_MIN_REQUIRED macro does not help.
-        # "-rpath" is supported since MacOSX 10.5 (Leopard).
-        NXT_CFLAGS="$NXT_CFLAGS -mmacosx-version-min=10.6"
-
         NXT_STATIC_LINK="ar -r -c"
         NXT_SHARED_LINK="\$(CC) -dynamiclib"
         NXT_SHARED_LOCAL_LINK="\$(CC) -dynamiclib \
                                -install_name @executable_path/libnxt.dylib"
-
-        # Prior to MacOSX 10.5 (Leopard) only bundles could be unloaded.
-        # NXT_MODULE_LINK="\$(CC) -bundle -undefined dynamic_lookup"
         NXT_MODULE_LINK="\$(CC) -dynamiclib -undefined dynamic_lookup"
 
         NXT_EXEC_LINK="\$(CC)"

auto/os/test

@@ -40,8 +40,6 @@ case "$NXT_SYSTEM" in
         NXT_SYSTEM_PLATFORM=`uname -m 2>/dev/null`
         echo=echo
         CC=${CC:-cc}
-
-        NXT_TEST_CFLAGS="$NXT_TEST_CFLAGS -mmacosx-version-min=10.6"
         ;;
 
     AIX)

auto/threads

@@ -203,8 +203,7 @@ fi
 # Thread Local Storage / Thread Specific Data.
 #
 # Linux, FreeBSD 5.3, Solaris.
-# MacOSX 10.7 (Lion) Clang.  However, if the -mmacosx-version-min
-# option is specified it must be at least 10.7.
+# MacOSX 10.7 (Lion) Clang.
 
 nxt_feature="__thread"
 nxt_feature_name=NXT_HAVE_THREAD_STORAGE_CLASS