From abdb20fd8d5056c3d9c824009bf72eb15fc64329 Mon Sep 17 00:00:00 2001
From: Ben Wiederhake <BenWiederhake.GitHub@gmx.de>
Date: Sun, 24 Jun 2018 11:05:53 +0200
Subject: Auto-discover path to ar

Fixes https://github.com/majn/telegram-purple/issues/454
---
 Makefile.in  |  3 +-
 configure    | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 configure.ac |  1 +
 3 files changed, 96 insertions(+), 1 deletion(-)

diff --git a/Makefile.in b/Makefile.in
index 682af67..c41fcdf 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -31,6 +31,7 @@ DEPENDENCE_LIST=${DEPENDENCE}
 
 INCLUDE=-I. -I${srcdir}
 CC=@CC@
+AR=@AR@
 
 # Check if -fstack-protector-strong is supported before enabling it
 SPUNSUPPORTED = $(shell $(CC) -fstack-protector-strong 2>&1 | grep -c 'stack-protector-strong')
@@ -63,7 +64,7 @@ ${TGL_OBJECTS_AUTO}: ${OBJ}/auto/%.o: ${AUTO}/%.c | create_dirs
 	${CC} ${INCLUDE} ${COMPILE_FLAGS} -iquote ${srcdir}/tgl -c -MP -MD -MF ${DEP}/$*.d -MQ ${OBJ}/$*.o -o $@ $<
 
 ${LIB}/libtgl.a: ${TGL_OBJECTS} ${COMMON_OBJECTS} ${TGL_OBJECTS_AUTO}
-	rm -f $@ && ar ruv $@ $^
+	rm -f $@ && ${AR} ruv $@ $^
 
 ${LIB}/libtgl.so: ${TGL_OBJECTS} ${COMMON_OBJECTS} ${TGL_OBJECTS_AUTO}
 	${CC} -shared -o $@ $^ ${LINK_FLAGS}
diff --git a/configure b/configure
index 42f722d..701a5d6 100755
--- a/configure
+++ b/configure
@@ -630,6 +630,7 @@ OPENSSL_LDFLAGS
 OPENSSL_LIBS
 OPENSSL_INCLUDES
 PKG_CONFIG
+AR
 OBJEXT
 EXEEXT
 ac_ct_CC
@@ -3099,6 +3100,98 @@ ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
 ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
 ac_compiler_gnu=$ac_cv_c_compiler_gnu
 
+if test -n "$ac_tool_prefix"; then
+  # Extract the first word of "${ac_tool_prefix}ar", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ar; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$AR"; then
+  ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_AR="${ac_tool_prefix}ar"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_AR"; then
+  ac_ct_AR=$AR
+  # Extract the first word of "ar", so it can be a program name with args.
+set dummy ar; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AR+:} false; then :
+  $as_echo_n "(cached) " >&6
+else
+  if test -n "$ac_ct_AR"; then
+  ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+  IFS=$as_save_IFS
+  test -z "$as_dir" && as_dir=.
+    for ac_exec_ext in '' $ac_executable_extensions; do
+  if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+    ac_cv_prog_ac_ct_AR="ar"
+    $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+    break 2
+  fi
+done
+  done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+$as_echo "$ac_ct_AR" >&6; }
+else
+  { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+  if test "x$ac_ct_AR" = x; then
+    AR="as_fn_error $? "No ar found.  Huh?" "$LINENO" 5"
+  else
+    case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+    AR=$ac_ct_AR
+  fi
+else
+  AR="$ac_cv_prog_AR"
+fi
+
 
 # BSD locations for headers and libraries from packages, Linux locations for self-compiled stuff.
 CPPFLAGS="$CPPFLAGS -I/usr/local/include"
diff --git a/configure.ac b/configure.ac
index 2267a66..416c550 100644
--- a/configure.ac
+++ b/configure.ac
@@ -8,6 +8,7 @@ m4_include([m4_ax_check_zlib.m4])
 
 # Checks for programs.
 AC_PROG_CC
+AC_CHECK_TOOL(AR, ar, [AC_MSG_ERROR([No ar found.  Huh?])])
 
 # BSD locations for headers and libraries from packages, Linux locations for self-compiled stuff.
 CPPFLAGS="$CPPFLAGS -I/usr/local/include"
-- 
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