From ac9d057895f1e61f63cbecafcc3e3820fdb10f84 Mon Sep 17 00:00:00 2001
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From: Luca Saiu <positron@gnu.org>
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Date: Fri, 30 Apr 2021 22:42:57 +0200
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Subject: [PATCH] tentatively change --cppflags to omit -I prefix on
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cross-compilation
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The autoconf macros defined from jitter --cppflags get automatically changed, of
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course.
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* configure.ac (JITTER_CROSS_COMPILING): New substitution.
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* bin/jitter-config.in.m4sh (main loop) <--cppflags>: Introduce conditional on
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the new substitution.
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Suggested by Romain Naour, after his difficulties with building GNU poke with
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buildroot.
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(cherry picked from commit 428406c7b8d4c20f3472d41ed57c12c1a88ad37e)
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[Romain:
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patch jitter-config.in instead of jitter-config.in.m4sh since
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there is an issue while converting the M4sh m4sh script ( .in.m4sh )
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into a portable shell script ( .in ) ready to be processed by aclocal
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for @-substitutions.]
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Signed-off-by: Romain Naour <romain.naour@gmail.com>
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---
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jitter/bin/jitter-config.in | 10 +++++++---
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jitter/configure.ac | 1 +
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2 files changed, 8 insertions(+), 3 deletions(-)
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diff --git a/jitter/bin/jitter-config.in b/jitter/bin/jitter-config.in
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index 5e124f0..4bc508d 100644
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--- a/jitter/bin/jitter-config.in
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+++ b/jitter/bin/jitter-config.in
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@@ -999,10 +999,14 @@ while test "$#" != "0"; do
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--cppflags)
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no_option_argument
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append_to_output cppflags
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- # Append a -I argument. This is defined separately from the rest,
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- # as the installation prefix can be decided very late, at Jitter
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+ # Unless cross-compiling, append a -I argument referring the
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+ # installation path. This is defined separately from the rest, as
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+ # the installation prefix can be decided very late, at Jitter
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# installation time.
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- output="$output -I $includedir";;
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+ # (When cross-compiling this would be difficult to do correctly.)
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+ if test "x@JITTER_CROSS_COMPILING@" != 'xyes'; then
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+ output="$output -I $includedir"
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+ fi;;
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--ldadd)
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no_option_argument
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append_to_output ldadd;;
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diff --git a/jitter/configure.ac b/jitter/configure.ac
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index 21d6937..fb12349 100644
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--- a/jitter/configure.ac
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+++ b/jitter/configure.ac
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@@ -308,6 +308,7 @@ else
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AC_MSG_RESULT([yes, cross-compiling from $build to $host .])
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jitter_cross_compiling=yes
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fi
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+AC_SUBST([JITTER_CROSS_COMPILING], [$jitter_cross_compiling])
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# I never test on weird systems not supporting shebangs.
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AC_SYS_INTERPRETER
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--
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2.31.1
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