While trying to build a --host=i586-pc-msdosdjgpp gdb on GNU/Linux
(Fedora 17), I stumbled on a build error in readline:
config.status: executing default commands
make: *** No rule to make target `/config.h', needed by `readline.o'. Stop.
Turns out BUILD_DIR was ending up empty in the Makefile:
...
BUILD_DIR =
...
readline.o: rldefs.h ${BUILD_DIR}/config.h rlconf.h
...
The issue is that configure is deciding whether to run pwd.exe or pwd
based on $host_os (msdosdjgpp), while it should be checking $build_os
instead (linux-gnu).
Let me know whether this is accepted into readline so we can backport
it to GDB's readline copy.
readline/
2013-05-21 Pedro Alves <[email protected]>
* configure.in: Check $build_os instead of $host_os wheng deciding
whether to run `pwd.exe' on djgpp.
* configure: Regenerate.
---
0 files changed
diff --git a/readline/configure b/readline/configure
index 0187311..80eb7eb 100755
--- a/readline/configure
+++ b/readline/configure
@@ -6264,7 +6264,7 @@ fi
-case "$host_os" in
+case "$build_os" in
msdosdjgpp*) BUILD_DIR=`pwd.exe` ;; # to prevent //d/path/file
*) BUILD_DIR=`pwd` ;;
esac
diff --git a/readline/configure.in b/readline/configure.in
index f09f4e5..a2dfab5 100644
--- a/readline/configure.in
+++ b/readline/configure.in
@@ -268,7 +268,7 @@ AC_SUBST(SHARED_TARGET)
AC_SUBST(STATIC_INSTALL_TARGET)
AC_SUBST(SHARED_INSTALL_TARGET)
-case "$host_os" in
+case "$build_os" in
msdosdjgpp*) BUILD_DIR=`pwd.exe` ;; # to prevent //d/path/file
*) BUILD_DIR=`pwd` ;;
esac
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