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* [binutils-gdb] Fix doc build dependencies for --with-system-readline
@ 2023-02-13 14:16 Keith Seitz
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From: Keith Seitz @ 2023-02-13 14:16 UTC (permalink / raw)
To: gdb-cvs
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=14d0e6818a022b72c265f15f63c8ccc2fc8c302a
commit 14d0e6818a022b72c265f15f63c8ccc2fc8c302a
Author: Keith Seitz <keiths@redhat.com>
Date: Mon Feb 13 06:14:40 2023 -0800
Fix doc build dependencies for --with-system-readline
PR build/30108 concerns building gdb documentation with
--with-sytem-readline. If the in-tree readline directory is
missing, though, the docs will fail to build:
make[4]: Entering directory '/home/keiths/work/readline-doc-issue/linux/gdb/doc'
make[4]: *** No rule to make target '../../../src/gdb/doc/../../readline/readline/doc/rluser.texi', needed by 'gdb.info'. Stop.
The listed file (and hsuser.texi) are conditionally included by gdb.texinfo.
When system readline is used, gdb/configure.ac will leave
READLINE_TEXI_INCFLAGS empty, causing doc/Makefile.in to output a line to
$BUILD/doc/GDBvn.texi with "@set SYSTEM_READLINE". This surpresses the
inclusion of the missing files. They are not needed or used in this
scenario.
However, GDB_DOC_SOURCE_INCLUDES always lists these two files as dependencies,
thus provoking the build error whenever readline/ is missing.
This patch fixes this by creating (essentially) a conditional setting of the
dependencies to be included from readline.
Diff:
---
gdb/configure | 8 ++++++--
gdb/configure.ac | 3 +++
gdb/doc/Makefile.in | 8 ++++++--
3 files changed, 15 insertions(+), 4 deletions(-)
diff --git a/gdb/configure b/gdb/configure
index 8b2039912e7..1114bcdc0af 100755
--- a/gdb/configure
+++ b/gdb/configure
@@ -746,6 +746,7 @@ LIBEXPAT
HAVE_LIBEXPAT
JIT_READER_DIR
TARGET_PTR
+READLINE_DOC_SOURCE_INCLUDES
READLINE_TEXI_INCFLAG
READLINE_CFLAGS
READLINE_DEPS
@@ -11449,7 +11450,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 11452 "configure"
+#line 11453 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -11555,7 +11556,7 @@ else
lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
lt_status=$lt_dlunknown
cat > conftest.$ac_ext <<_LT_EOF
-#line 11558 "configure"
+#line 11559 "configure"
#include "confdefs.h"
#if HAVE_DLFCN_H
@@ -20793,17 +20794,20 @@ $as_echo "$gdb_cv_readline_ok" >&6; }
READLINE_DEPS=
READLINE_CFLAGS=
READLINE_TEXI_INCFLAG=
+ READLINE_DOC_SOURCE_INCLUDES='$(READLINE_SYSTEM_DOC_INCLUDES)'
else
READLINE='$(READLINE_DIR)/libreadline.a'
READLINE_DEPS='$(READLINE)'
READLINE_CFLAGS='-I$(READLINE_SRC)/..'
READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
+ READLINE_DOC_SOURCE_INCLUDES='$(READLINE_INTREE_DOC_INCLUDES)'
fi
+
# Generate jit-reader.h
# This is typedeffed to GDB_CORE_ADDR in jit-reader.h
diff --git a/gdb/configure.ac b/gdb/configure.ac
index 79eb013ce19..47e35f467f8 100644
--- a/gdb/configure.ac
+++ b/gdb/configure.ac
@@ -644,16 +644,19 @@ if test "$with_system_readline" = yes; then
READLINE_DEPS=
READLINE_CFLAGS=
READLINE_TEXI_INCFLAG=
+ READLINE_DOC_SOURCE_INCLUDES='$(READLINE_SYSTEM_DOC_INCLUDES)'
else
READLINE='$(READLINE_DIR)/libreadline.a'
READLINE_DEPS='$(READLINE)'
READLINE_CFLAGS='-I$(READLINE_SRC)/..'
READLINE_TEXI_INCFLAG='-I $(READLINE_DIR)'
+ READLINE_DOC_SOURCE_INCLUDES='$(READLINE_INTREE_DOC_INCLUDES)'
fi
AC_SUBST(READLINE)
AC_SUBST(READLINE_DEPS)
AC_SUBST(READLINE_CFLAGS)
AC_SUBST(READLINE_TEXI_INCFLAG)
+AC_SUBST(READLINE_DOC_SOURCE_INCLUDES)
# Generate jit-reader.h
diff --git a/gdb/doc/Makefile.in b/gdb/doc/Makefile.in
index 5d40aa229b2..110b6088905 100644
--- a/gdb/doc/Makefile.in
+++ b/gdb/doc/Makefile.in
@@ -121,6 +121,11 @@ PDFTEX = pdftex
# Program to generate Postscript files from DVI files.
DVIPS = dvips
+# Readline includes.
+READLINE_SYSTEM_DOC_INCLUDES =
+READLINE_INTREE_DOC_INCLUDES = $(READLINE_DIR)/rluser.texi $(READLINE_DIR)/hsuser.texi
+READLINE_DOC_SOURCE_INCLUDES = @READLINE_DOC_SOURCE_INCLUDES@
+
# Main GDB manual
# Note that this unconditionally includes the readline texi files,
# even when --with-system-readline is used. This is harmless because
@@ -129,8 +134,7 @@ GDB_DOC_SOURCE_INCLUDES = \
$(srcdir)/fdl.texi \
$(srcdir)/gpl.texi \
$(srcdir)/agentexpr.texi \
- $(READLINE_DIR)/rluser.texi \
- $(READLINE_DIR)/hsuser.texi
+ $(READLINE_DOC_SOURCE_INCLUDES)
GDB_DOC_BUILD_INCLUDES = \
gdb-cfg.texi \
GDBvn.texi
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