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* [newlib-cygwin/cygwin-3_4-branch] Cygwin: dumper: also link with libzstd, as libbfd may require it
@ 2023-02-14 22:05 Jon Turney
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From: Jon Turney @ 2023-02-14 22:05 UTC (permalink / raw)
To: cygwin-cvs, newlib-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=2fd459c3b180def80b0db4b6c91e4f088e779cc1
commit 2fd459c3b180def80b0db4b6c91e4f088e779cc1
Author: Jon Turney <jon.turney@dronecode.org.uk>
Date: Tue Feb 14 13:52:39 2023 +0000
Cygwin: dumper: also link with libzstd, as libbfd may require it
Also allow that linkage to be dynamic, as libzstd-devel doesn't
currently provide a static library.
Diff:
---
.appveyor.yml | 1 +
.github/workflows/cygwin.yml | 1 +
winsup/configure.ac | 7 +++++++
winsup/doc/faq-programming.xml | 2 +-
winsup/utils/Makefile.am | 3 ++-
5 files changed, 12 insertions(+), 2 deletions(-)
diff --git a/.appveyor.yml b/.appveyor.yml
index 50a9101b7..9f20f6d83 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -35,6 +35,7 @@ patch,\
cocom,\
gettext-devel,\
libiconv-devel,\
+libzstd-devel,\
zlib-devel,\
%PKGARCH%-gcc-core,\
%PKGARCH%-gcc-g++,\
diff --git a/.github/workflows/cygwin.yml b/.github/workflows/cygwin.yml
index 7ad5ccf5f..8f7b888e3 100644
--- a/.github/workflows/cygwin.yml
+++ b/.github/workflows/cygwin.yml
@@ -80,6 +80,7 @@ jobs:
gettext-devel,
libiconv,
libiconv-devel,
+ libzstd-devel,
make,
mingw64-${{ matrix.pkgarch }}-gcc-g++,
mingw64-${{ matrix.pkgarch }}-zlib,
diff --git a/winsup/configure.ac b/winsup/configure.ac
index 9205a8886..49a8346fa 100644
--- a/winsup/configure.ac
+++ b/winsup/configure.ac
@@ -116,6 +116,13 @@ AC_CHECK_LIB([bfd], [bfd_init], [true],
AM_CONDITIONAL(BUILD_DUMPER, [test "x$ac_cv_lib_bfd_bfd_init" = "xyes"])
+# libbfd.a doesn't have a pkgconfig file, so we guess what it's dependencies
+# are, based on what's present in the build environment
+BFD_LIBS="-lintl -liconv -liberty -lz"
+AC_CHECK_LIB([sframe], [sframe_decode], [BFD_LIBS="${BFD_LIBS} -lsframe"])
+AC_CHECK_LIB([zstd], [ZSTD_isError], [BFD_LIBS="${BFD_LIBS} -lzstd"])
+AC_SUBST([BFD_LIBS])
+
AC_CONFIG_FILES([
Makefile
cygwin/Makefile
diff --git a/winsup/doc/faq-programming.xml b/winsup/doc/faq-programming.xml
index 632d1a173..d23f32c3a 100644
--- a/winsup/doc/faq-programming.xml
+++ b/winsup/doc/faq-programming.xml
@@ -679,7 +679,7 @@ rewriting the runtime library in question from specs...
installed; you at least need <literal>gcc-g++</literal>,
<literal>make</literal>, <literal>automake</literal>,
<literal>autoconf</literal>, <literal>git</literal>, <literal>perl</literal>,
-<literal>gettext-devel</literal>, <literal>libiconv-devel</literal>
+<literal>gettext-devel</literal>, <literal>libiconv-devel</literal>, <literal>libzstd-devel</literal>,
<literal>zlib-devel</literal>, <literal>cocom</literal> and <literal>patch</literal>.
</para>
diff --git a/winsup/utils/Makefile.am b/winsup/utils/Makefile.am
index 6be5b12c2..fa6499dfe 100644
--- a/winsup/utils/Makefile.am
+++ b/winsup/utils/Makefile.am
@@ -78,7 +78,8 @@ LDADD = -lnetapi32
cygpath_CXXFLAGS = -fno-threadsafe-statics $(AM_CXXFLAGS)
cygpath_LDADD = $(LDADD) -luserenv -lntdll
dumper_CXXFLAGS = -I$(top_srcdir)/../include $(AM_CXXFLAGS)
-dumper_LDADD = $(LDADD) -lpsapi -lbfd -lintl -liconv -liberty -lz -lntdll
+dumper_LDADD = $(LDADD) -lpsapi -lntdll -lbfd @BFD_LIBS@
+dumper_LDFLAGS =
ldd_LDADD = $(LDADD) -lpsapi -lntdll
mount_CXXFLAGS = -DFSTAB_ONLY $(AM_CXXFLAGS)
minidumper_LDADD = $(LDADD) -ldbghelp
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