[PATCH 0/2] Improvements in configure options for reducing dependencies

[PATCH 0/2] Improvements in configure options for reducing dependencies

[Jon Turney]

Jon Turney (2):
  Cygwin: FAQ: Mention configure options to build with reduced
    dependencies
  Cygwin: configure: Add option to disable building 'dumper'

 winsup/configure.ac            |  8 +++++---
 winsup/doc/faq-programming.xml | 16 ++++++++++++----
 2 files changed, 17 insertions(+), 7 deletions(-)

-- 
2.39.0

[PATCH 1/2] Cygwin: FAQ: Mention configure options to build with reduced dependencies

[Jon Turney]

---
 winsup/doc/faq-programming.xml | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/winsup/doc/faq-programming.xml b/winsup/doc/faq-programming.xml
index 632d1a173..a24b781cf 100644
--- a/winsup/doc/faq-programming.xml
+++ b/winsup/doc/faq-programming.xml
@@ -679,14 +679,21 @@ 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>cocom</literal> and <literal>patch</literal>.
+</para>
+
+<para>
+Additionally, building the <code>dumper</code> utility requires
 <literal>gettext-devel</literal>, <literal>libiconv-devel</literal>
-<literal>zlib-devel</literal>, <literal>cocom</literal> and <literal>patch</literal>.
+<literal>zlib-devel</literal>.
 </para>
 
 <para>
-Building for 64-bit Cygwin also requires
-<literal>mingw64-x86_64-gcc-g++</literal> and
-<literal>mingw64-x86_64-zlib</literal>.
+Building those Cygwin utilities which are not themselves Cygwin programs
+(e.g. <code>cygcheck</code> and <code>strace</code>) also requires
+<literal>mingw64-x86_64-gcc-g++</literal> and <literal>mingw64-x86_64-zlib</literal>.
+Building these programs can be disabled with the <literal>--without-cross-bootstrap</literal>
+option to <literal>configure</literal>.
 </para>
 
 <!-- If you want to run the tests, <literal>dejagnu</literal> is also required. -->
-- 
2.39.0

[PATCH 2/2] Cygwin: configure: Add option to disable building 'dumper'

[Jon Turney]

Rather than guessing, based on just the presence of libbfd, add an
explicit configuration option, to build dumper or not, defaulting to
building it.

This might have some use when bootstrapping Cygwin for a new
architecture, or when building your own Cygwin-targetted cross-compiler,
rather than installing one from the copr, along with the dependencies of
libbfd.
---
 winsup/configure.ac            | 8 +++++---
 winsup/doc/faq-programming.xml | 3 ++-
 2 files changed, 7 insertions(+), 4 deletions(-)

diff --git a/winsup/configure.ac b/winsup/configure.ac
index 9205a8886..7a2121dae 100644
--- a/winsup/configure.ac
+++ b/winsup/configure.ac
@@ -111,10 +111,12 @@ AM_CONDITIONAL(CROSS_BOOTSTRAP, [test "x$with_cross_bootstrap" != "xyes"])
 
 AC_EXEEXT
 
-AC_CHECK_LIB([bfd], [bfd_init], [true],
-	     AC_MSG_WARN([Not building dumper.exe since some required libraries or headers are missing]))
+AC_ARG_ENABLE([dumper],
+	      [AS_HELP_STRING([--disable-dumper], [do not build the 'dumper' utility])],
+	      [build_dumper=$enableval],
+	      [build_dumper=yes])
 
-AM_CONDITIONAL(BUILD_DUMPER, [test "x$ac_cv_lib_bfd_bfd_init" = "xyes"])
+AM_CONDITIONAL(BUILD_DUMPER, [test "x$build_dumper" = "xyes"])
 
 AC_CONFIG_FILES([
     Makefile
diff --git a/winsup/doc/faq-programming.xml b/winsup/doc/faq-programming.xml
index a24b781cf..24c7f928e 100644
--- a/winsup/doc/faq-programming.xml
+++ b/winsup/doc/faq-programming.xml
@@ -685,7 +685,8 @@ installed; you at least need <literal>gcc-g++</literal>,
 <para>
 Additionally, building the <code>dumper</code> utility requires
 <literal>gettext-devel</literal>, <literal>libiconv-devel</literal>
-<literal>zlib-devel</literal>.
+<literal>zlib-devel</literal>.  Building this program can be disabled with the
+<literal>--disable-dumper</literal> option to <literal>configure</literal>.
 </para>
 
 <para>
-- 
2.39.0

Re: [PATCH 0/2] Improvements in configure options for reducing dependencies

[Corinna Vinschen]

On Dec 14 17:30, Jon Turney wrote:
> Jon Turney (2):
>   Cygwin: FAQ: Mention configure options to build with reduced
>     dependencies
>   Cygwin: configure: Add option to disable building 'dumper'
> 
>  winsup/configure.ac            |  8 +++++---
>  winsup/doc/faq-programming.xml | 16 ++++++++++++----
>  2 files changed, 17 insertions(+), 7 deletions(-)

LGTM.

Thanks,
Corinna