3 files changed, 36 insertions, 0 deletions
diff --git a/hello-world/README.md b/hello-world/README.md
new file mode 100644
index 0000000..e279105
--- /dev/null
+++ b/hello-world/README.md
@@ -0,0 +1,8 @@
+Build hello.
+```
+guix build -f make.scm
+```
+Run it.
+```
+$(guix build -f make.scm)
+```
diff --git a/hello-world/hello.c b/hello-world/hello.c
new file mode 100644
index 0000000..05ce120
--- /dev/null
+++ b/hello-world/hello.c
@@ -0,0 +1,7 @@
+#include <stdio.h>
+
+int main ()
+{
+  printf("Hello world!\n");
+  return 0;
+}
diff --git a/hello-world/make.scm b/hello-world/make.scm
new file mode 100644
index 0000000..7d3c6e8
--- /dev/null
+++ b/hello-world/make.scm
@@ -0,0 +1,21 @@
+(use-modules (gnu packages commencement)
+             (guix gexp))
+
+(define hello-gexp
+  (with-imported-modules '((guix build utils))
+    #~(begin
+	(use-modules (guix build utils))
+
+	(set-path-environment-variable "PATH"
+				       '("bin")
+				       (list #$gcc-toolchain))
+	(set-path-environment-variable "C_INCLUDE_PATH"
+				       '("include")
+				       (list #$gcc-toolchain))
+	(set-path-environment-variable "LIBRARY_PATH"
+				       '("lib")
+				       (list #$gcc-toolchain))
+	(invoke "gcc" #$(local-file "hello.c")
+		"-o" #$output))))
+
+(computed-file "hello" hello-gexp)