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-rw-r--r--INSTALL.md16
1 files changed, 12 insertions, 4 deletions
diff --git a/INSTALL.md b/INSTALL.md
index 29e0abafd3..9da2e3c734 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -109,8 +109,8 @@ Installing prerequisites on Ubuntu or Debian:
 
 ```
 sudo apt-get install build-essential python3-dev libffi-dev \
-                     python-pip python-setuptools sqlite3 \
-                     libssl-dev python-virtualenv libjpeg-dev libxslt1-dev
+                     python3-pip python3-setuptools sqlite3 \
+                     libssl-dev python3-virtualenv libjpeg-dev libxslt1-dev
 ```
 
 #### ArchLinux
@@ -133,9 +133,9 @@ sudo yum install libtiff-devel libjpeg-devel libzip-devel freetype-devel \
 sudo yum groupinstall "Development Tools"
 ```
 
-#### Mac OS X
+#### macOS
 
-Installing prerequisites on Mac OS X:
+Installing prerequisites on macOS:
 
 ```
 xcode-select --install
@@ -144,6 +144,14 @@ sudo pip install virtualenv
 brew install pkg-config libffi
 ```
 
+On macOS Catalina (10.15) you may need to explicitly install OpenSSL
+via brew and inform `pip` about it so that `psycopg2` builds:
+
+```
+brew install openssl@1.1
+export LDFLAGS=-L/usr/local/Cellar/openssl\@1.1/1.1.1d/lib/
+```
+
 #### OpenSUSE
 
 Installing prerequisites on openSUSE: