Fix addr2line work when the process is looked up via PATH.

Fixes #72

.github/workflows/ci.yml

@@ -171,7 +171,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-20.04, ubuntu-22.04, macos-12, macos-13, macos-14 ]
-        shared: [ ON ] # https://github.com/boostorg/stacktrace/issues/169
+        shared: [ OFF, ON ]
 
     runs-on: ${{matrix.os}}
 
@@ -215,7 +215,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-20.04, ubuntu-22.04, macos-12, macos-13, macos-14 ]
-        shared: [ ON ] # https://github.com/boostorg/stacktrace/issues/169
+        shared: [ OFF, ON ]
 
     runs-on: ${{matrix.os}}
 
@@ -275,7 +275,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-20.04, ubuntu-22.04, macos-12, macos-13, macos-14 ]
-        shared: [ ON ] # https://github.com/boostorg/stacktrace/issues/169
+        shared: [ OFF, ON ]
 
     runs-on: ${{matrix.os}}
 
@@ -443,7 +443,7 @@ jobs:
       fail-fast: false
       matrix:
         os: [ windows-2019, windows-2022 ]
-        shared: [ ON ] # https://github.com/boostorg/stacktrace/issues/169
+        shared: [ OFF, ON ]
 
     runs-on: ${{matrix.os}}
 

include/boost/stacktrace/detail/addr2line_impls.hpp

@@ -18,6 +18,7 @@
 #include <boost/stacktrace/detail/try_dec_convert.hpp>
 #include <boost/core/demangle.hpp>
 #include <cstdio>
+#include <cstring>
 
 #include <sys/types.h>
 #include <sys/wait.h>
@@ -116,7 +117,9 @@ inline std::string addr2line(const char* flag, const void* addr) {
     std::string res;
 
     boost::stacktrace::detail::location_from_symbol loc(addr);
-    if (!loc.empty()) {
+    // For programs started through $PATH loc.name() is not absolute and
+    // addr2line will fail.
+    if (!loc.empty() && std::strchr(loc.name(), '/') != nullptr) {
         res = loc.name();
     } else {
         res.resize(16);

include/boost/stacktrace/detail/push_options.h

@@ -11,7 +11,11 @@
 #   define BOOST_STACKTRACE_LINK
 #endif
 
-#if defined(BOOST_STACKTRACE_LINK) && !defined(BOOST_STACKTRACE_DYN_LINK) && defined(BOOST_ALL_DYN_LINK)
+#if !defined(BOOST_STACKTRACE_LINK) && defined(BOOST_STACKTRACE_STATIC_LINK)
+#   define BOOST_STACKTRACE_LINK
+#endif
+
+#if defined(BOOST_STACKTRACE_LINK) && !defined(BOOST_STACKTRACE_DYN_LINK) && !defined(BOOST_STACKTRACE_STATIC_LINK) && defined(BOOST_ALL_DYN_LINK)
 #   define BOOST_STACKTRACE_DYN_LINK
 #endif