From b0acd4e5705fc4c28d4a42cde86dae7a433a2f95 Mon Sep 17 00:00:00 2001
From: Joseph Hunkeler <jhunkeler@gmail.com>
Date: Mon, 31 Aug 2020 10:28:37 -0400
Subject: Bake in path to rsync a compile-time

---
 CMakeLists.txt | 18 +++++++++---------
 config.h.in    |  1 +
 multihome.h    |  2 +-
 3 files changed, 11 insertions(+), 10 deletions(-)
 create mode 100644 config.h.in

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 3de427f..af22806 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,7 +5,7 @@ include(CheckCSourceCompiles)
 
 set(CMAKE_C_STANDARD 99)
 
-include_directories(.)
+include_directories("${CMAKE_CURRENT_BINARY_DIR}")
 
 check_symbol_exists(basename "libgen.h" HAVE_BASENAME)
 check_symbol_exists(dirname "libgen.h" HAVE_DIRNAME)
@@ -16,20 +16,20 @@ check_c_source_compiles(
     "
     #include <argp.h>
     int main(int argc, char *argv[]) {
-        struct argp_option option[10];
+        struct argp_option option[1];
     }
     "
     HAVE_ARGP
 )
-if (NOT HAVE_ARGP)
-    message(FATAL_ERROR "Your toolchain does not provide argp")
-endif()
 
-find_program(PROGRAM_RSYNC rsync REQUIRED)
+find_program(RSYNC_BIN
+        NAMES rsync
+        REQUIRED)
+
+configure_file("config.h.in" "config.h" @ONLY)
 
 add_executable(multihome
-        multihome.c
-        multihome.h)
+        multihome.c)
 
 install(TARGETS multihome
-        RUNTIME DESTINATION bin)
\ No newline at end of file
+        RUNTIME DESTINATION bin)
diff --git a/config.h.in b/config.h.in
new file mode 100644
index 0000000..6007830
--- /dev/null
+++ b/config.h.in
@@ -0,0 +1 @@
+#cmakedefine RSYNC_BIN "@RSYNC_BIN@"
diff --git a/multihome.h b/multihome.h
index 5943b4e..c08401c 100644
--- a/multihome.h
+++ b/multihome.h
@@ -19,11 +19,11 @@
 #include <wait.h>
 #include <argp.h>
 #include <time.h>
+#include "config.h"
 
 #define VERSION "0.0.1"
 #define MULTIHOME_ROOT "home_local"
 #define OS_SKEL_DIR "/etc/skel/"  // NOTE: Trailing slash is required
-#define RSYNC_BIN "/usr/bin/rsync"
 #define RSYNC_ARGS "-aq"
 
 #endif //MULTIHOME_MULTIHOME_H
-- 
cgit