Updated for GNAT CE 2020.

  * README.md: updated.
  * ce2020-specs: applied the GNAT CE 2019 patch.

Author: simonjwright

README.md

@@ -38,7 +38,9 @@ You can fix the second by `-I/usr/local/include`, `-L/usr/local/lib`.
 
 An alternative (without installing Xcode) would be to copy `ce2109-specs` to `$prefix/lib/gcc/x86_64-apple-darwin17.7.0/8.3.1/specs` (`ce2019-specs` was generated by `gcc -dumpspecs` and judicious editing).
 
-I haven't done this for GNAT CE 2020.
+### GNAT CE 2020 ###
+
+The changes here are very similar to those for GNAT CE 2019, but read `ce2020-specs` for `ce2019-specs`. 
 
 ### FSF GCC ###
 

ce2020-specs

@@ -15,7 +15,7 @@
  as %(asm_options) %m.s %A }  }
 
 *cpp:
-%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__} %{pthread:-D_REENTRANT}
+%{static:%{!dynamic:-D__STATIC__}}%{!static:-D__DYNAMIC__} %{pthread:-D_REENTRANT} -idirafter /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/usr/local/include
 
 *cpp_options:
 %(cpp_unique_options) %1 %{m*} %{std*&ansi&trigraphs} %{W*&pedantic*} %{w} %{f*} %{g*:%{%:debug-level-gt(0):%{g*} %{!fno-working-directory:-fworking-directory}}} %{O*} %{undef} %{save-temps*:-fpch-preprocess}
@@ -36,7 +36,7 @@ cc1 -E %{traditional|traditional-cpp:-traditional-cpp}
 %{pg:%{fomit-frame-pointer:%e-pg and -fomit-frame-pointer are incompatible}} %{!iplugindir*:%{fplugin*:%:find-plugindir()}} %1 %{!Q:-quiet} %{!dumpbase:-dumpbase %B} %{d*} %{m*} %{aux-info*} %{fcompare-debug-second:%:compare-debug-auxbase-opt(%b)}  %{!fcompare-debug-second:%{c|S:%{o*:-auxbase-strip %*}%{!o*:-auxbase %b}}}%{!c:%{!S:-auxbase %b}}  %{g*} %{O*} %{W*&pedantic*} %{w} %{std*&ansi&trigraphs} %{v:-version} %{pg:-p} %{p} %{f*} %{undef} %{Qn:-fno-ident} %{Qy:} %{-help:--help} %{-target-help:--target-help} %{-version:--version} %{-help=*:--help=%*} %{!fsyntax-only:%{S:%W{o*}%{!o*:-o %b.s}}} %{fsyntax-only:-o %j} %{-param*} %{coverage:-fprofile-arcs -ftest-coverage} %{fdump-scos:-fpreserve-decisions-generic} %{fprofile-arcs|fprofile-generate*|coverage:   %{!fprofile-update=single:     %{pthread:-fprofile-update=prefer-atomic}}}
 
 *cc1plus:
-
+-idirafter /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include -I/usr/local/include
 
 *link_gcc_c_sequence:
 %:version-compare(>= 10.6 mmacosx-version-min= -no_compact_unwind)    %{!static:%{!static-libgcc:       %:version-compare(>= 10.6 mmacosx-version-min= -lSystem) } }    %{fno-pic|fno-PIC|fno-pie|fno-PIE|fapple-kext|mkernel|static|mdynamic-no-pic:       %:version-compare(>= 10.7 mmacosx-version-min= -no_pie) } %G %{!nolibc:%L}
@@ -90,7 +90,7 @@ cc1 -E %{traditional|traditional-cpp:-traditional-cpp}
 
 
 *linker:
-collect2
+collect2 -L/usr/lib -L/usr/local/lib
 
 *linker_plugin_file: