From 30f9f20e235269181da5b29aee917ea1987420ba Mon Sep 17 00:00:00 2001
From: Francesco Abbate <francesco.bbt@gmail.com>
Date: Wed, 17 Mar 2021 18:10:47 +0100
Subject: [PATCH] Ensure xrdb code is compiled only on unix

---
 src/main.c       |  2 +-
 src/xrdb_parse.c | 12 ++++++++----
 2 files changed, 9 insertions(+), 5 deletions(-)

diff --git a/src/main.c b/src/main.c
index dc3abda1..0024a717 100644
--- a/src/main.c
+++ b/src/main.c
@@ -20,7 +20,7 @@ static double get_scale(void) {
   float dpi;
   SDL_GetDisplayDPI(0, NULL, &dpi, NULL);
   return dpi / 96.0;
-#elif __linux__
+#elif __unix__
   int xft_dpi = xrdb_find_dpi();
   if (xft_dpi > 0) {
     return xft_dpi / 96.0;
diff --git a/src/xrdb_parse.c b/src/xrdb_parse.c
index 197bb60d..2c90de9d 100644
--- a/src/xrdb_parse.c
+++ b/src/xrdb_parse.c
@@ -1,3 +1,5 @@
+#ifdef __unix__
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -25,16 +27,15 @@ static int xrdb_popen (int *pid_ptr) {
   int fd[2];
 
   pipe(fd);
-  int read_fd = fd[STDIN_FILENO];
-  int write_fd = fd[STDOUT_FILENO];
-
-  char *path = getenv("PATH");
+  int read_fd = fd[0];
+  int write_fd = fd[1];
 
   int pid = fork();
   if (pid == 0) {
     close(read_fd);
     dup2(write_fd, STDOUT_FILENO);
     close(write_fd);
+    char *path = getenv("PATH");
     char xrdb_filename[256];
     while (path) {
       char *xrgb_argv[3] = {"xrdb", "-query", NULL};
@@ -93,6 +94,7 @@ static int xrdb_parse_for_dpi(int read_fd) {
             xrdb_complete_reading(read_fd);
             return dpi_read;
           }
+          /* doesn't match: position after newline to search again */
           line_start = nlptr + 1;
         } else {
           /* No newline found: copy the remaining part at the beginning of buf
@@ -137,3 +139,5 @@ int xrdb_find_dpi() {
   }
   return -1;
 }
+
+#endif