From 3f065483d06e48db82a13d7ed0df333841ea31c9 Mon Sep 17 00:00:00 2001
From: Konstantin Khlebnikov <koct9i@gmail.com>
Date: Sat, 18 Jan 2025 14:53:40 +0100
Subject: [PATCH] Fix musl build

---
 .github/workflows/ci.yaml | 11 +++++++++++
 ioping.c                  | 17 +++++++++++------
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/.github/workflows/ci.yaml b/.github/workflows/ci.yaml
index d1f5e9f..e7ae37d 100644
--- a/.github/workflows/ci.yaml
+++ b/.github/workflows/ci.yaml
@@ -29,6 +29,9 @@ jobs:
           - os: ubuntu-latest
             image: debian:12
 
+          - os: ubuntu-latest
+            image: alpine:3
+
           - os: ubuntu-24.04-arm
 
           # - os: ubuntu-24.04-arm
@@ -46,6 +49,9 @@ jobs:
           - os: ubuntu-24.04-arm
             image: fedora:42
 
+          # - os: ubuntu-24.04-arm
+          #   image: alpine:3
+
           - os: macos-13
           - os: macos-14
           - os: macos-15
@@ -63,6 +69,11 @@ jobs:
       - name: Checkout repo
         uses: actions/checkout@v4
 
+      - name: Dependencies (alpine)
+        if: ${{ startsWith(matrix.build.image, 'alpine') }}
+        run: |
+          apk --no-cache add make gcc musl-dev linux-headers
+
       - name: Dependencies (ubuntu, debian)
         if: ${{ startsWith(matrix.build.image, 'ubuntu') || startsWith(matrix.build.image, 'debian') }}
         run: |
diff --git a/ioping.c b/ioping.c
index 229456d..c6edd5f 100644
--- a/ioping.c
+++ b/ioping.c
@@ -59,6 +59,7 @@
 # include <sys/syscall.h>
 # define HAVE_CLOCK_GETTIME
 # define HAVE_POSIX_FADVICE
+# define HAVE_POSIX_FDATASYNC
 # define HAVE_POSIX_MEMALIGN
 # define HAVE_MKOSTEMP
 # define HAVE_DIRECT_IO
@@ -74,9 +75,11 @@
 #  define aio_rw_flags aio_reserved1
 # endif
 
-#if defined(__GLIBC_PREREQ) && __GLIBC_PREREQ(2, 32)
-# define HAVE_ERR_NAME
-#endif
+# ifdef __GLIBC_PREREQ
+#  if __GLIBC_PREREQ(2, 32)
+#   define HAVE_ERR_NAME
+#  endif
+# endif
 
 # undef RWF_NOWAIT
 # include <sys/uio.h>
@@ -174,8 +177,10 @@
 # define HAVE_MKOSTEMP /* not required */
 #endif
 
-#if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
-# define HAVE_POSIX_FDATASYNC
+#ifndef HAVE_POSIX_FDATASYNC
+# if defined(_POSIX_SYNCHRONIZED_IO) && _POSIX_SYNCHRONIZED_IO > 0
+#  define HAVE_POSIX_FDATASYNC
+# endif
 #endif
 
 #ifdef O_SYNC
@@ -1011,7 +1016,7 @@ int get_device_size(int fd, struct stat *st)
 
 #if defined(BLKGETSIZE64)
 	/* linux */
-	ret = ioctl(fd, BLKGETSIZE64, &blksize);
+	ret = ioctl(fd, (unsigned int)BLKGETSIZE64, &blksize);
 #elif defined(DIOCGMEDIASIZE)
 	/* freebsd */
 	ret = ioctl(fd, DIOCGMEDIASIZE, &blksize);