feat(autotools): basic usage

configure.ac

@@ -0,0 +1,30 @@
+# Init the 42sh project
+AC_INIT([42sh], [1.0], [matteo.flebus@epita.fr])
+
+# Setup Automake
+AM_INIT_AUTOMAKE([subdir-objects] [foreign])
+
+# Pretty display of Makefile rules
+AM_SILENT_RULES([yes])
+
+# Enable ar for Makefile
+AM_PROG_AR
+
+# Check if ranlib is available
+AC_PROG_RANLIB
+
+# Check if a C compiler is available
+AC_PROG_CC
+
+# Check if a compiler has this list of flags
+# AX_COMPILER_FLAGS([], [], [], [-std=c99 -pedantic -Werror -Wall -Wextra -Wvla])
+
+# List Makefiles in subdirectories
+AC_CONFIG_FILES([
+                    Makefile
+                    src/Makefile
+                    src/ast/Makefile
+                    src/parser/Makefile
+                    src/lexer/Makefile
+                ])
+AC_OUTPUT