]> git.ipfire.org Git - thirdparty/gcc.git/blobdiff - libstdc++-v3/include/Makefile.in
libstdc++/68297 avoid throw/catch in make_exception_ptr
[thirdparty/gcc.git] / libstdc++-v3 / include / Makefile.in
index 83dcefbd2df5539c807b1fcd817725bdb0db4fe6..d799860d095d6768cd2a9a7070d4f899981ed4ee 100644 (file)
@@ -1,9 +1,9 @@
-# Makefile.in generated by automake 1.11.1 from Makefile.am.
+# Makefile.in generated by automake 1.11.6 from Makefile.am.
 # @configure_input@
 
 # Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
-# 2003, 2004, 2005, 2006, 2007, 2008, 2009  Free Software Foundation,
-# Inc.
+# 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Free Software
+# Foundation, Inc.
 # This Makefile.in is free software; the Free Software Foundation
 # gives unlimited permission to copy and/or distribute it,
 # with or without modifications, as long as this notice is preserved.
 
 @SET_MAKE@
 VPATH = @srcdir@
+am__make_dryrun = \
+  { \
+    am__dry=no; \
+    case $$MAKEFLAGS in \
+      *\\[\ \  ]*) \
+        echo 'am--echo: ; @echo "AM"  OK' | $(MAKE) -f - 2>/dev/null \
+          | grep '^AM OK$$' >/dev/null || am__dry=yes;; \
+      *) \
+        for am__flg in $$MAKEFLAGS; do \
+          case $$am__flg in \
+            *=*|--*) ;; \
+            *n*) am__dry=yes; break;; \
+          esac; \
+        done;; \
+    esac; \
+    test $$am__dry = yes; \
+  }
 pkgdatadir = $(datadir)/@PACKAGE@
 pkgincludedir = $(includedir)/@PACKAGE@
 pkglibdir = $(libdir)/@PACKAGE@
@@ -67,6 +84,11 @@ CONFIG_CLEAN_VPATH_FILES =
 depcomp =
 am__depfiles_maybe =
 SOURCES =
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
 ABI_TWEAKS_SRCDIR = @ABI_TWEAKS_SRCDIR@
 ACLOCAL = @ACLOCAL@
 ALLOCATOR_H = @ALLOCATOR_H@
@@ -216,6 +238,7 @@ glibcxx_POFILES = @glibcxx_POFILES@
 glibcxx_builddir = @glibcxx_builddir@
 glibcxx_compiler_pic_flag = @glibcxx_compiler_pic_flag@
 glibcxx_compiler_shared_flag = @glibcxx_compiler_shared_flag@
+glibcxx_cxx98_abi = @glibcxx_cxx98_abi@
 glibcxx_localedir = @glibcxx_localedir@
 glibcxx_lt_pic_flag = @glibcxx_lt_pic_flag@
 glibcxx_prefixdir = @glibcxx_prefixdir@
@@ -287,17 +310,19 @@ WARN_CXXFLAGS = \
 
 
 # -I/-D flags to pass when compiling.
-AM_CPPFLAGS = $(GLIBCXX_INCLUDES)
+AM_CPPFLAGS = $(GLIBCXX_INCLUDES) $(CPPFLAGS)
 
 # Standard C++ includes.
 std_srcdir = ${glibcxx_srcdir}/include/std
 std_builddir = .
 std_headers = \
        ${std_srcdir}/algorithm \
+       ${std_srcdir}/any \
        ${std_srcdir}/array \
        ${std_srcdir}/atomic \
        ${std_srcdir}/bitset \
        ${std_srcdir}/chrono \
+       ${std_srcdir}/codecvt \
        ${std_srcdir}/complex \
        ${std_srcdir}/condition_variable \
        ${std_srcdir}/deque \
@@ -318,6 +343,7 @@ std_headers = \
        ${std_srcdir}/memory \
        ${std_srcdir}/mutex \
        ${std_srcdir}/numeric \
+       ${std_srcdir}/optional \
        ${std_srcdir}/ostream \
        ${std_srcdir}/queue \
        ${std_srcdir}/random \
@@ -331,6 +357,7 @@ std_headers = \
        ${std_srcdir}/stdexcept \
        ${std_srcdir}/streambuf \
        ${std_srcdir}/string \
+       ${std_srcdir}/string_view \
        ${std_srcdir}/system_error \
        ${std_srcdir}/thread \
        ${std_srcdir}/tuple \
@@ -340,6 +367,7 @@ std_headers = \
        ${std_srcdir}/unordered_set \
        ${std_srcdir}/utility \
        ${std_srcdir}/valarray \
+       ${std_srcdir}/variant \
        ${std_srcdir}/vector
 
 bits_srcdir = ${glibcxx_srcdir}/include/bits
@@ -350,6 +378,7 @@ bits_headers = \
        ${bits_srcdir}/allocated_ptr.h \
        ${bits_srcdir}/allocator.h \
        ${bits_srcdir}/atomic_base.h \
+       ${bits_srcdir}/atomic_futex.h \
        ${bits_srcdir}/basic_ios.h \
        ${bits_srcdir}/basic_ios.tcc \
        ${bits_srcdir}/basic_string.h \
@@ -357,6 +386,7 @@ bits_headers = \
        ${bits_srcdir}/boost_concept_check.h \
        ${bits_srcdir}/c++0x_warning.h \
        ${bits_srcdir}/c++14_warning.h \
+       ${bits_srcdir}/c++17_warning.h \
        ${bits_srcdir}/char_traits.h \
        ${bits_srcdir}/codecvt.h \
        ${bits_srcdir}/concept_check.h \
@@ -373,25 +403,30 @@ bits_headers = \
        ${bits_srcdir}/hashtable.h \
        ${bits_srcdir}/hashtable_policy.h \
        ${bits_srcdir}/indirect_array.h \
+       ${bits_srcdir}/invoke.h \
        ${bits_srcdir}/ios_base.h \
        ${bits_srcdir}/istream.tcc \
        ${bits_srcdir}/list.tcc \
        ${bits_srcdir}/locale_classes.h \
        ${bits_srcdir}/locale_classes.tcc \
+       ${bits_srcdir}/locale_conv.h \
        ${bits_srcdir}/locale_facets.h \
        ${bits_srcdir}/locale_facets.tcc \
        ${bits_srcdir}/locale_facets_nonio.h \
        ${bits_srcdir}/locale_facets_nonio.tcc \
        ${bits_srcdir}/localefwd.h \
        ${bits_srcdir}/mask_array.h \
+       ${bits_srcdir}/specfun.h \
        ${bits_srcdir}/memoryfwd.h \
        ${bits_srcdir}/move.h \
+       ${bits_srcdir}/std_mutex.h \
        ${bits_srcdir}/ostream.tcc \
        ${bits_srcdir}/ostream_insert.h \
        ${bits_srcdir}/parse_numbers.h \
        ${bits_srcdir}/postypes.h \
        ${bits_srcdir}/predefined_ops.h \
        ${bits_srcdir}/ptr_traits.h \
+       ${bits_srcdir}/quoted_string.h \
        ${bits_srcdir}/random.h \
        ${bits_srcdir}/random.tcc \
        ${bits_srcdir}/range_access.h \
@@ -410,6 +445,7 @@ bits_headers = \
        ${bits_srcdir}/stream_iterator.h \
        ${bits_srcdir}/streambuf_iterator.h \
        ${bits_srcdir}/shared_ptr.h \
+       ${bits_srcdir}/shared_ptr_atomic.h \
        ${bits_srcdir}/shared_ptr_base.h \
        ${bits_srcdir}/slice_array.h \
        ${bits_srcdir}/sstream.tcc \
@@ -440,6 +476,8 @@ bits_headers = \
        ${bits_srcdir}/stl_vector.h \
        ${bits_srcdir}/streambuf.tcc \
        ${bits_srcdir}/stringfwd.h \
+       ${bits_srcdir}/string_view.tcc \
+       ${bits_srcdir}/uniform_int_dist.h \
        ${bits_srcdir}/unique_ptr.h \
        ${bits_srcdir}/unordered_map.h \
        ${bits_srcdir}/unordered_set.h \
@@ -457,6 +495,8 @@ bits_sup_srcdir = ${glibcxx_srcdir}/libsupc++
 bits_sup_headers = \
        ${bits_sup_srcdir}/atomic_lockfree_defines.h \
        ${bits_sup_srcdir}/cxxabi_forced.h \
+       ${bits_sup_srcdir}/cxxabi_init_exception.h \
+       ${bits_sup_srcdir}/exception.h \
        ${bits_sup_srcdir}/exception_defines.h \
        ${bits_sup_srcdir}/exception_ptr.h \
        ${bits_sup_srcdir}/hash_bytes.h \
@@ -905,11 +945,54 @@ decimal_headers = \
 experimental_srcdir = ${glibcxx_srcdir}/include/experimental
 experimental_builddir = ./experimental
 experimental_headers = \
+       ${experimental_srcdir}/algorithm \
        ${experimental_srcdir}/any \
+       ${experimental_srcdir}/array \
+       ${experimental_srcdir}/chrono \
+       ${experimental_srcdir}/deque \
+       ${experimental_srcdir}/forward_list \
+       ${experimental_srcdir}/functional \
+       ${experimental_srcdir}/iterator \
+       ${experimental_srcdir}/list \
+       ${experimental_srcdir}/map \
+       ${experimental_srcdir}/memory \
+       ${experimental_srcdir}/memory_resource \
+       ${experimental_srcdir}/numeric \
        ${experimental_srcdir}/optional \
+       ${experimental_srcdir}/propagate_const \
+       ${experimental_srcdir}/random \
+       ${experimental_srcdir}/ratio \
+       ${experimental_srcdir}/regex \
+       ${experimental_srcdir}/set \
+       ${experimental_srcdir}/string \
        ${experimental_srcdir}/string_view \
-       ${experimental_srcdir}/string_view.tcc \
-       ${experimental_srcdir}/tuple
+       ${experimental_srcdir}/system_error \
+       ${experimental_srcdir}/tuple \
+       ${experimental_srcdir}/type_traits \
+       ${experimental_srcdir}/unordered_map \
+       ${experimental_srcdir}/unordered_set \
+       ${experimental_srcdir}/utility \
+       ${experimental_srcdir}/vector \
+       ${experimental_filesystem_headers}
+
+experimental_bits_srcdir = ${glibcxx_srcdir}/include/experimental/bits
+experimental_bits_builddir = ./experimental/bits
+experimental_bits_headers = \
+       ${experimental_bits_srcdir}/erase_if.h \
+       ${experimental_bits_srcdir}/shared_ptr.h \
+       ${experimental_bits_srcdir}/string_view.tcc \
+       ${experimental_bits_filesystem_headers}
+
+@ENABLE_FILESYSTEM_TS_FALSE@experimental_filesystem_headers = 
+@ENABLE_FILESYSTEM_TS_TRUE@experimental_filesystem_headers = \
+@ENABLE_FILESYSTEM_TS_TRUE@    ${experimental_srcdir}/filesystem
+
+@ENABLE_FILESYSTEM_TS_FALSE@experimental_bits_filesystem_headers = 
+@ENABLE_FILESYSTEM_TS_TRUE@experimental_bits_filesystem_headers = \
+@ENABLE_FILESYSTEM_TS_TRUE@    ${experimental_bits_srcdir}/fs_dir.h \
+@ENABLE_FILESYSTEM_TS_TRUE@    ${experimental_bits_srcdir}/fs_fwd.h \
+@ENABLE_FILESYSTEM_TS_TRUE@    ${experimental_bits_srcdir}/fs_ops.h \
+@ENABLE_FILESYSTEM_TS_TRUE@    ${experimental_bits_srcdir}/fs_path.h
 
 
 # This is the common subset of C++ files that all three "C" header models use.
@@ -939,6 +1022,7 @@ c_base_headers = \
        ${c_base_srcdir}/cstring \
        ${c_base_srcdir}/ctgmath \
        ${c_base_srcdir}/ctime \
+       ${c_base_srcdir}/cuchar \
        ${c_base_srcdir}/cwchar \
        ${c_base_srcdir}/cwctype
 
@@ -949,7 +1033,9 @@ c_compatibility_builddir = .
 @GLIBCXX_C_HEADERS_C_GLOBAL_TRUE@c_compatibility_headers = \
 @GLIBCXX_C_HEADERS_C_GLOBAL_TRUE@      ${c_compatibility_srcdir}/complex.h \
 @GLIBCXX_C_HEADERS_C_GLOBAL_TRUE@      ${c_compatibility_srcdir}/fenv.h \
-@GLIBCXX_C_HEADERS_C_GLOBAL_TRUE@      ${c_compatibility_srcdir}/tgmath.h
+@GLIBCXX_C_HEADERS_C_GLOBAL_TRUE@      ${c_compatibility_srcdir}/tgmath.h \
+@GLIBCXX_C_HEADERS_C_GLOBAL_TRUE@      ${c_compatibility_srcdir}/math.h \
+@GLIBCXX_C_HEADERS_C_GLOBAL_TRUE@      ${c_compatibility_srcdir}/stdlib.h
 
 @GLIBCXX_C_HEADERS_C_STD_TRUE@c_compatibility_headers = 
 @GLIBCXX_C_HEADERS_C_TRUE@c_compatibility_headers = \
@@ -975,6 +1061,7 @@ c_compatibility_builddir = .
 @GLIBCXX_C_HEADERS_C_TRUE@     ${c_compatibility_srcdir}/string.h \
 @GLIBCXX_C_HEADERS_C_TRUE@     ${c_compatibility_srcdir}/tgmath.h \
 @GLIBCXX_C_HEADERS_C_TRUE@     ${c_compatibility_srcdir}/time.h \
+@GLIBCXX_C_HEADERS_C_TRUE@     ${c_compatibility_srcdir}/uchar.h \
 @GLIBCXX_C_HEADERS_C_TRUE@     ${c_compatibility_srcdir}/wchar.h \
 @GLIBCXX_C_HEADERS_C_TRUE@     ${c_compatibility_srcdir}/wctype.h
 
@@ -984,12 +1071,14 @@ debug_srcdir = ${glibcxx_srcdir}/include/debug
 debug_builddir = ./debug
 debug_headers = \
        ${debug_srcdir}/array \
+       ${debug_srcdir}/assertions.h \
        ${debug_srcdir}/bitset \
        ${debug_srcdir}/debug.h \
        ${debug_srcdir}/deque \
        ${debug_srcdir}/formatter.h \
        ${debug_srcdir}/forward_list \
        ${debug_srcdir}/functions.h \
+       ${debug_srcdir}/helper_functions.h \
        ${debug_srcdir}/list \
        ${debug_srcdir}/map \
        ${debug_srcdir}/macros.h \
@@ -1009,6 +1098,7 @@ debug_headers = \
        ${debug_srcdir}/safe_unordered_container.tcc \
        ${debug_srcdir}/set \
        ${debug_srcdir}/set.h \
+       ${debug_srcdir}/stl_iterator.h \
        ${debug_srcdir}/string \
        ${debug_srcdir}/unordered_map \
        ${debug_srcdir}/unordered_set \
@@ -1181,8 +1271,8 @@ PCHFLAGS = -x c++-header -nostdinc++ $(CXXFLAGS) $(VTV_PCH_CXXFLAGS)
 allstamped = \
        stamp-std stamp-bits stamp-bits-sup stamp-c_base stamp-c_compatibility \
        stamp-backward stamp-ext stamp-pb stamp-tr1 stamp-tr2 stamp-decimal \
-       stamp-experimental stamp-debug stamp-parallel stamp-profile \
-       stamp-profile-impl stamp-host
+       stamp-experimental stamp-experimental-bits stamp-debug stamp-parallel \
+       stamp-profile stamp-profile-impl stamp-host
 
 
 # List of all files that are created by explicit building, editing, or
@@ -1221,6 +1311,7 @@ Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
            echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe)'; \
            cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__depfiles_maybe);; \
        esac;
+$(top_srcdir)/fragment.am:
 
 $(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
        cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
@@ -1256,10 +1347,15 @@ install-am: all-am
 
 installcheck: installcheck-am
 install-strip:
-       $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
-         install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
-         `test -z '$(STRIP)' || \
-           echo "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'"` install
+       if test -z '$(STRIP)'; then \
+         $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+           install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+             install; \
+       else \
+         $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+           install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+           "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+       fi
 mostlyclean-generic:
 
 clean-generic:
@@ -1472,6 +1568,11 @@ stamp-experimental: ${experimental_headers}
        @-cd ${experimental_builddir} && $(LN_S) $? . 2>/dev/null
        @$(STAMP) stamp-experimental
 
+stamp-experimental-bits: ${experimental_bits_headers}
+       @-mkdir -p ${experimental_bits_builddir}
+       @-cd ${experimental_bits_builddir} && $(LN_S) $? . 2>/dev/null
+       @$(STAMP) stamp-experimental-bits
+
 stamp-debug: ${debug_headers}
        @-mkdir -p ${debug_builddir}
        @-cd ${debug_builddir} && $(LN_S) $? . 2>/dev/null
@@ -1532,6 +1633,21 @@ stamp-host: ${host_headers} ${bits_host_headers} ${ext_host_headers} ${host_head
 @ENABLE_VISIBILITY_FALSE@stamp-visibility:
 @ENABLE_VISIBILITY_FALSE@      echo 0 > stamp-visibility
 
+@ENABLE_DUAL_ABI_TRUE@stamp-dual-abi:
+@ENABLE_DUAL_ABI_TRUE@ echo 1 > stamp-dual-abi
+@ENABLE_DUAL_ABI_FALSE@stamp-dual-abi:
+@ENABLE_DUAL_ABI_FALSE@        echo 0 > stamp-dual-abi
+
+@ENABLE_CXX11_ABI_TRUE@stamp-cxx11-abi:
+@ENABLE_CXX11_ABI_TRUE@        echo 1 > stamp-cxx11-abi
+@ENABLE_CXX11_ABI_FALSE@stamp-cxx11-abi:
+@ENABLE_CXX11_ABI_FALSE@       echo 0 > stamp-cxx11-abi
+
+@ENABLE_ALLOCATOR_NEW_TRUE@stamp-allocator-new:
+@ENABLE_ALLOCATOR_NEW_TRUE@    echo 1 > stamp-allocator-new
+@ENABLE_ALLOCATOR_NEW_FALSE@stamp-allocator-new:
+@ENABLE_ALLOCATOR_NEW_FALSE@   echo 0 > stamp-allocator-new
+
 # NB: The non-empty default ldbl_compat works around an AIX sed
 # oddity, see libstdc++/31957 for details.
 ${host_builddir}/c++config.h: ${CONFIG_HEADER} \
@@ -1540,11 +1656,17 @@ ${host_builddir}/c++config.h: ${CONFIG_HEADER} \
                              ${toplevel_srcdir}/gcc/DATESTAMP \
                              stamp-namespace-version \
                              stamp-visibility \
-                             stamp-extern-template
+                             stamp-extern-template \
+                             stamp-dual-abi \
+                             stamp-cxx11-abi \
+                             stamp-allocator-new
        @date=`cat ${toplevel_srcdir}/gcc/DATESTAMP` ;\
        ns_version=`cat stamp-namespace-version` ;\
        visibility=`cat stamp-visibility` ;\
        externtemplate=`cat stamp-extern-template` ;\
+       dualabi=`cat stamp-dual-abi` ;\
+       cxx11abi=`cat stamp-cxx11-abi` ;\
+       allocatornew=`cat stamp-allocator-new` ;\
        ldbl_compat='s,g,g,' ;\
        grep "^[         ]*#[    ]*define[       ][      ]*_GLIBCXX_LONG_DOUBLE_COMPAT[  ][      ]*1[    ]*$$" \
        ${CONFIG_HEADER} > /dev/null 2>&1 \
@@ -1553,6 +1675,9 @@ ${host_builddir}/c++config.h: ${CONFIG_HEADER} \
        -e "s,define _GLIBCXX_INLINE_VERSION, define _GLIBCXX_INLINE_VERSION $$ns_version," \
        -e "s,define _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY, define _GLIBCXX_HAVE_ATTRIBUTE_VISIBILITY $$visibility," \
        -e "s,define _GLIBCXX_EXTERN_TEMPLATE$$, define _GLIBCXX_EXTERN_TEMPLATE $$externtemplate," \
+       -e "s,define _GLIBCXX_USE_DUAL_ABI, define _GLIBCXX_USE_DUAL_ABI $$dualabi," \
+       -e "s,define _GLIBCXX_USE_CXX11_ABI, define _GLIBCXX_USE_CXX11_ABI $$cxx11abi," \
+       -e "s,define _GLIBCXX_USE_ALLOCATOR_NEW, define _GLIBCXX_USE_ALLOCATOR_NEW $$allocatornew," \
        -e "$$ldbl_compat" \
            < ${glibcxx_srcdir}/include/bits/c++config > $@ ;\
        sed -e 's/HAVE_/_GLIBCXX_HAVE_/g' \
@@ -1637,7 +1762,7 @@ ${pch3_output}: ${pch3_source} ${pch2_output}
 # libsupc++, so only the others and the sub-includes are copied here.
 install-freestanding-headers:
        $(mkinstalldirs) $(DESTDIR)${gxx_include_dir}/bits
-       for file in c++0x_warning.h atomic_base.h; do \
+       for file in c++0x_warning.h atomic_base.h concept_check.h move.h; do \
          $(INSTALL_DATA) ${glibcxx_srcdir}/include/bits/$${file} $(DESTDIR)${gxx_include_dir}/bits; done
        $(mkinstalldirs) $(DESTDIR)${host_installdir}
        for file in ${host_srcdir}/os_defines.h ${host_builddir}/c++config.h \
@@ -1707,6 +1832,9 @@ install-headers:
        $(mkinstalldirs) $(DESTDIR)${gxx_include_dir}/${experimental_builddir}
        for file in ${experimental_headers}; do \
          $(INSTALL_DATA) $${file} $(DESTDIR)${gxx_include_dir}/${experimental_builddir}; done
+       $(mkinstalldirs) $(DESTDIR)${gxx_include_dir}/${experimental_bits_builddir}
+       for file in ${experimental_bits_headers}; do \
+         $(INSTALL_DATA) $${file} $(DESTDIR)${gxx_include_dir}/${experimental_bits_builddir}; done
        $(mkinstalldirs) $(DESTDIR)${gxx_include_dir}/${c_base_builddir}
        for file in ${c_base_headers}; do \
          $(INSTALL_DATA) $${file} $(DESTDIR)${gxx_include_dir}/${c_base_builddir}; done
@@ -1750,12 +1878,14 @@ clean-local:
 # be made.)
 .PRECIOUS: $(std_headers) $(c_base_headers) $(tr1_headers) $(tr2_headers)
           $(decimal_headers) $(ext_headers) $(experimental_headers)
+          $(experimental_bits_headers)
 $(std_headers): ; @:
 $(c_base_headers): ; @:
 $(tr1_headers): ; @:
 $(decimal_headers): ; @:
 $(ext_headers): ; @:
 $(experimental_headers): ; @:
+$(experimental_bits_headers): ; @:
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.