diff options
Diffstat (limited to 'frontends/verilog/preproc.cc')
| -rw-r--r-- | frontends/verilog/preproc.cc | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/frontends/verilog/preproc.cc b/frontends/verilog/preproc.cc index 2dcc91043..2033a290f 100644 --- a/frontends/verilog/preproc.cc +++ b/frontends/verilog/preproc.cc @@ -38,7 +38,6 @@ #include <stdio.h> #include <string.h> #include <assert.h> -#include <list> static std::list<std::string> output_code; static std::list<std::string> input_buffer; @@ -206,7 +205,7 @@ static std::string define_to_feature(std::string defname) return std::string(); } -std::string frontend_verilog_preproc(FILE *f, std::string filename, const std::map<std::string, std::string> pre_defines_map) +std::string frontend_verilog_preproc(FILE *f, std::string filename, const std::map<std::string, std::string> pre_defines_map, const std::list<std::string> include_dirs) { std::map<std::string, std::string> defines_map(pre_defines_map); int ifdef_fail_level = 0; @@ -273,9 +272,20 @@ std::string frontend_verilog_preproc(FILE *f, std::string filename, const std::m } FILE *fp = fopen(fn.c_str(), "r"); if (fp == NULL && fn.size() > 0 && fn[0] != '/' && filename.find('/') != std::string::npos) { + // if the include file was not found, it is not given with an absolute path, and the + // currently read file is given with a path, then try again relative to its directory std::string fn2 = filename.substr(0, filename.rfind('/')+1) + fn; fp = fopen(fn2.c_str(), "r"); } + if (fp == NULL && fn.size() > 0 && fn[0] != '/') { + // if the include file was not found and it is not given with an absolute path, then + // search it in the include path + for (auto incdir : include_dirs) { + std::string fn2 = incdir + '/' + fn; + fp = fopen(fn2.c_str(), "r"); + if (fp != NULL) break; + } + } if (fp != NULL) { input_file(fp, fn); fclose(fp); |