build: MSYS2 MinGW64

build.zig

@@ -5,10 +5,17 @@ pub fn build(b: *std.Build) void {
     const optimize = b.standardOptimizeOption(.{});
     const version = std.SemanticVersion{ .major = 0, .minor = 1, .patch = 0 };
 
+    const t = target.result;
+
+    const protoc_program = switch (t.os.tag) {
+        .windows => "protoc",
+        else => "proto-c",
+    };
+
     var flags = std.BoundedArray([]const u8, 16){};
     flags.appendSliceAssumeCapacity(&EXE_FLAGS);
 
-    const protocc_run = b.addSystemCommand(&.{"protoc-c"});
+    const protocc_run = b.addSystemCommand(&.{protoc_program});
     protocc_run.addArgs(&.{"--c_out=."});
     protocc_run.addArgs(&PROTO_SOURCES);
 
@@ -30,9 +37,32 @@ pub fn build(b: *std.Build) void {
         .files = &PROTO_GENERATED_SOURCES,
         .flags = flags.constSlice(),
     });
-    sigbak_exe.linkSystemLibrary("libcrypto");
-    sigbak_exe.linkSystemLibrary("libprotobuf-c");
-    sigbak_exe.linkSystemLibrary("sqlite3");
+
+    switch (t.os.tag) {
+        .windows => {
+            sigbak_exe.addLibraryPath(std.Build.LazyPath{
+                .cwd_relative = "C:/Users/LeimgruberF/opt/msys64/mingw64/lib"
+            });
+            sigbak_exe.addIncludePath(std.Build.LazyPath{
+                .cwd_relative = "C:/Users/LeimgruberF/opt/msys64/mingw64/include"
+            });
+        },
+        else => {},
+    }
+
+    switch (t.os.tag) {
+        .windows => {
+            sigbak_exe.linkSystemLibrary("ssl");
+            sigbak_exe.linkSystemLibrary("protobuf-c");
+            sigbak_exe.linkSystemLibrary("sqlite3");
+        },
+        else => {
+            sigbak_exe.linkSystemLibrary("libcrypto");
+            sigbak_exe.linkSystemLibrary("libprotobuf-c");
+            sigbak_exe.linkSystemLibrary("sqlite3");
+        },
+    }
+
     sigbak_exe.linkLibC();
 
     sigbak_exe.step.dependOn(&protocc_run.step);

compat.h

@@ -138,4 +138,11 @@ void	*reallocarray(void *, size_t, size_t);
 int	 unveil(const char *, const char *);
 #endif
 
+/* ensure mkdir(pathname, mode) exists */
+#ifdef HAVE_MKDIR
+# ifdef MKDIR_TAKES_ONE_ARG
+#  define mkdir(a, b) _mkdir(a)
+# endif
+#endif
+
 #endif

config.h

@@ -83,6 +83,25 @@
 
 #endif
 
+/*
+ * MSYS2/MinWG64
+ */
+
+#ifdef __MINGW64__
+
+#define _GNU_SOURCE
+
+#define HAVE_ASPRINTF
+#define HAVE_BE32TOH
+#define HAVE_MKDIR
+#define MKDIR_TAKES_ONE_ARG
+#define HAVE_READPASSPHRASE
+
+#define UTIME_OMIT	-1L
+#define O_DIRECTORY 0L
+#define O_CLOEXEC 0L
+#endif
+
 /*
  * DragonFly BSD
  */

mingw64.Makefile

@@ -0,0 +1,68 @@
+PREFIX?=	/usr/local
+BINDIR?=	${PREFIX}/bin
+MANDIR?=	${PREFIX}/man
+
+CC?=		cc
+INSTALL?=	install
+PKG_CONFIG?=	pkg-config
+PROTOC?=	protoc
+
+LIBCRYPTO_PKG?=		libcrypto
+LIBPROTOBUF_C_PKG?=	libprotobuf-c
+SQLITE3_PKG?=		sqlite3
+
+PKGS?=		${LIBCRYPTO_PKG} ${LIBPROTOBUF_C_PKG} ${SQLITE3_PKG}
+
+PKG_CFLAGS!=	${PKG_CONFIG} --cflags ${PKGS}
+PKG_LDFLAGS!=	${PKG_CONFIG} --libs ${PKGS}
+
+CFLAGS+=	${PKG_CFLAGS}
+CFLAGS+=	-I/mingw64/include
+CFLAGS+=	-Icompat
+LDFLAGS+=	${PKG_LDFLAGS}
+
+PROTOS=		backup.proto database.proto
+PROTO_HDRS=	${PROTOS:.proto=.pb-c.h}
+PROTO_SRCS=	${PROTOS:.proto=.pb-c.c}
+PROTO_OBJS=	${PROTO_SRCS:.c=.o}
+
+COMPAT_OBJS=	compat/asprintf.o compat/bs_cbb.o compat/err.o \
+		compat/explicit_bzero.o compat/fopen.o compat/getprogname.o \
+		compat/hkdf.o compat/hmac_ctx_new.o compat/pledge.o \
+		compat/readpassphrase.o compat/reallocarray.o compat/unveil.o
+
+OBJS=		cmd-check-backup.o cmd-dump-backup.o cmd-export-attachments.o \
+		cmd-export-avatars.o cmd-export-database.o \
+		cmd-export-messages.o mime.o sbk-attachment-tree.o \
+		sbk-attachment.o sbk-database.o sbk-edit.o sbk-file.o \
+		sbk-frame.o sbk-mention.o sbk-message.o sbk-open.o \
+		sbk-quote.o sbk-reaction.o sbk-read.o sbk-recipient-tree.o \
+		sbk-recipient.o sbk-sqlite.o sbk-thread.o sigbak.o \
+		${PROTO_OBJS} ${COMPAT_OBJS}
+
+.PHONY: all clean install
+
+.SUFFIXES:
+.SUFFIXES: .c .pb-c.o .o .pb-c.c .pb-c.h .proto
+
+.c.o .pb-c.c.pb-c.o:
+	${CC} ${CFLAGS} ${CPPFLAGS} -c -o $@ $<
+
+.proto.pb-c.c .proto.pb-c.h:
+	${PROTOC} --c_out=. $<
+
+all: sigbak
+
+sigbak: ${OBJS}
+	${CC} -o $@ ${OBJS} ${LDFLAGS}
+
+${OBJS}: config.h ${PROTO_HDRS}
+
+clean:
+	rm -f sigbak sigbak.core core ${PROTO_SRCS} ${PROTO_HDRS} ${OBJS}
+
+install: all
+	${INSTALL} -dm 755 ${DESTDIR}${BINDIR}
+	${INSTALL} -dm 755 ${DESTDIR}${MANDIR}/man1
+	${INSTALL} -m 555 sigbak ${DESTDIR}${BINDIR}
+	${INSTALL} -m 444 sigbak.1 ${DESTDIR}${MANDIR}/man1