Recommend statically linking to libstdc++

Author: FooBarWidget

ESSENTIAL-SYSTEM-LIBRARIES.md

@@ -22,4 +22,5 @@ We consider the following libraries to be essential system libraries:
 
     # GCC runtime
     libgcc_s.so
-    libstdc++.so
+
+Note that libstdc++ is not included in this list because of the [C++ linking caveats](LINKING-CXX.md).

LIBCURL-SSL-CERTIFICATE-AUTHORITIES.md

@@ -1,4 +1,4 @@
-# The special problem of libcurl SSL certificate authorities
+# Caveat: libcurl SSL certificate authorities
 
 If you use libcurl to perform HTTPS requests, then libcurl requires a list of certificate authorities. If you do not provide libcurl with such a list (through `CURLOPT_CAINFO`) then libcurl will attempt to use the operating system's default certificate authority list. However, every Linux distribution stores this list in a different location. Distributions customize their libcurl packages to tell libcurl where their default list is.
 

README.md

@@ -16,6 +16,7 @@ Holy Build Box is a system for building "portable" binaries for Linux: binaries
  * [Getting started](#getting-started)
    - [Tutorials](#tutorials)
    - [Guides](#guides)
+   - [Caveats](#caveats)
  * [FAQ](#faq)
    - [Who should be interested in portable Linux binaries?](#who-should-be-interested-in-portable-linux-binaries)
    - [Which operating systems does Holy Build Box support?](#which-operating-systems-does-holy-build-box-support)
@@ -134,7 +135,13 @@ Guides:
  * [Security hardening binaries](SECURITY-HARDENING-BINARIES.md)
  * [Building 32-bit binaries](BUILDING-32-BIT-BINARIES.md)
  * [Caching compilation results with ccache](CACHING-WITH-CCACHE.md)
- * [The special problem of libcurl SSL certificate authorities](LIBCURL-SSL-CERTIFICATE-AUTHORITIES.md)
+
+<a name="caveats"></a>
+
+Caveats:
+
+ * [Libcurl SSL certificate authorities](LIBCURL-SSL-CERTIFICATE-AUTHORITIES.md)
+ * [Linking C++ applications and libraries](LINKING-CXX.md)
 
 ## FAQ
 

TUTORIAL-7-VERIFYING-PORTABILITY-WITH-LIBCHECK.md

@@ -79,6 +79,6 @@ cp /usr/local/nginx/sbin/nginx /io/
 
 ## Conclusion
 
-Congratulations, you have reached the end of the tutorials! You may now be interested in reading the [guides](README.md#guides).
+Congratulations, you have reached the end of the tutorials! You may now be interested in reading the [guides](README.md#guides) and the [caveats](README.md#caveats).
 
 Happy building.

libcheck

@@ -15,7 +15,7 @@ if len(sys.argv) <= 1:
 ARROW = re.compile(" => ")
 SYSTEM_LIBRARIES_REGEX = \
 	"linux-gate|linux-vdso|libpthread|librt|libdl|libcrypt|libm|libc" + \
-	"|ld-linux.*|libutil|libnsl|libgcc_s|libstdc\\+\\+|libresolv"
+	"|ld-linux.*|libutil|libnsl|libgcc_s|libresolv"
 
 if 'LIBCHECK_ALLOW' in os.environ:
 	WHITELIST_REGEX = re.compile('(' + SYSTEM_LIBRARIES_REGEX +