From 152db27146e8b219af118abae8d235831aad2153 Mon Sep 17 00:00:00 2001 From: Andrew Kelley Date: Mon, 25 Feb 2019 20:09:18 -0500 Subject: better error message when forgetting to link against libc closes #1698 --- src/ir.cpp | 8 ++++++++ 1 file changed, 8 insertions(+) (limited to 'src/ir.cpp') diff --git a/src/ir.cpp b/src/ir.cpp index d6e40384f8..73ad54a32d 100644 --- a/src/ir.cpp +++ b/src/ir.cpp @@ -15520,6 +15520,14 @@ static IrInstruction *ir_analyze_container_field_ptr(IrAnalyze *ira, Buf *field_ } static void add_link_lib_symbol(IrAnalyze *ira, Buf *lib_name, Buf *symbol_name, AstNode *source_node) { + if (buf_eql_str(lib_name, "c") && ira->codegen->libc_link_lib == nullptr && + !ira->codegen->reported_bad_link_libc_error) + { + ir_add_error_node(ira, source_node, + buf_sprintf("dependency on library c must be explicitly specified in the build command")); + ira->codegen->reported_bad_link_libc_error = true; + } + LinkLib *link_lib = add_link_lib(ira->codegen, lib_name); for (size_t i = 0; i < link_lib->symbols.length; i += 1) { Buf *existing_symbol_name = link_lib->symbols.at(i); -- cgit v1.2.3