Merge #6941: docs: update build instructions for Unix systems to include libbacktrace as a dependency

bf07d2e Update build instructions in doc/build-unix.md to note the absence of libbacktrace in Fedora repositories and provide guidance on disabling stack traces during the build process. (pasta)
c31ec72 Update doc/build-unix.md (PastaPastaPasta)
a30f51e Update doc/build-unix.md (PastaPastaPasta)
0d461d1 Update FreeBSD build instructions to include libbacktrace as a dependency (pasta)
a40b132 Update doc/build-unix.md (PastaPastaPasta)
7488521 docs: update build instructions for Unix systems to include libbacktrace as a dependency (pasta)

Pull request description:

  ## Issue being fixed or feature implemented
  we build with backtrace by default.

  ## What was done?

  ## How Has This Been Tested?
  arch tested

  ## Breaking Changes

  ## Checklist:
    _Go over all the following points, and put an `x` in all the boxes that apply._
  - [ ] I have performed a self-review of my own code
  - [ ] I have commented my code, particularly in hard-to-understand areas
  - [ ] I have added or updated relevant unit/integration/functional/e2e tests
  - [ ] I have made corresponding changes to the documentation
  - [x] I have assigned this pull request to a milestone _(for repository code-owners and collaborators only)_

ACKs for top commit:
  UdjinM6:
    utACK bf07d2e
  kwvg:
    utACK bf07d2e

Tree-SHA512: a289f04c253c2f145526717745c54e80c1a7a7ea01037f05eb8e9e2181d46e90e0bbe87dd8a1052760eb8c849be995122845cc57c60dae6a9361b04a7ce05e10

Author: PastaPastaPasta

doc/build-freebsd.md

@@ -10,7 +10,7 @@ This guide describes how to build dashd, command-line utilities, and GUI on Free
 Run the following as root to install the base dependencies for building.
 
 ```bash
-pkg install autoconf automake boost-libs git gmake libevent libtool pkgconf
+pkg install autoconf automake boost-libs git gmake libevent libtool pkgconf libbacktrace
 
 ```
 

doc/build-unix.md

@@ -58,9 +58,12 @@ sudo apt-get install build-essential libtool autotools-dev automake pkg-config b
 Now, you can either build from self-compiled [depends](/depends/README.md) or install the required dependencies:
 
 ```sh
-sudo apt-get install libevent-dev libboost-dev
+sudo apt-get install libbacktrace-dev libevent-dev libboost-dev
 ```
 
+Note: libbacktrace-dev is available in Debian 13 (Trixie) and Ubuntu 25.04+.
+For older releases, use the /depends/README.md which includes all required libraries.
+
 SQLite is required for the descriptor wallet:
 
 ```sh
@@ -142,6 +145,8 @@ Now, you can either build from self-compiled [depends](/depends/README.md) or in
 sudo dnf install libevent-devel boost-devel
 ```
 
+Note: Fedora repositories do not include libbacktrace. To build Dash Core without stack trace support, configure with `--disable-stacktraces`.
+
 SQLite is required for the descriptor wallet:
 
 ```sh
@@ -279,7 +284,7 @@ Setup and Build Example: Arch Linux
 This example lists the steps necessary to setup and build a command line only distribution of the latest changes on Arch Linux:
 
 ```sh
-pacman --sync --needed autoconf automake boost gcc git libevent libtool make pkgconf python sqlite
+pacman --sync --needed autoconf automake boost gcc git libbacktrace libevent libtool make pkgconf python sqlite
 git clone https://github.com/dashpay/dash.git
 cd dash/
 ./autogen.sh